I have some good quality health related sites and health blogs and I can give you link from good quality health related sites and health blogs.My websites & blogs content is 100% original / unique - written by me so I expect QUALITY websites from you.
I am also interested for reciprocal link exchange and 3way link exchange link exchange..
I can provide you good quality PR 0,1,2,3,4,5 pages .
Please show me your health related sites and blogs.
Your link will be added after your response [ Good PR indexed by Google link back needed ]…..
I hope for an early and positive response from your side . We respect you for your time and effort…..
If you’re interested, Please drop an email….
murali.expedient@gmail.com
Note:I am not accepted link exchange with Games,Pharamacy,gambling content sites & blogs.
Tuesday, March 23, 2010
Monday, March 22, 2010
How Do Search Engines Measure Link Quality?
We’ve already spent a good bit of time extolling the virtues of high-quality links. That’s because search engines take great pride in their ability to have literally hundreds of algorithmic components to evaluate link quality. Some of the important factors they consider that we’ve already looked at include:
•Visibility, Status and Trust of Linking Domain (Time vs. Weekly World News)
•Semantic Value of Anchor Text (search engine optimization vs. click here)
•Location of Link in Site Structure (Deep, Natural Links vs. Shallow, Spammy Links)
In addition to these elements there are other advanced factors the engines apply when determining link value:
Location of Link on Page:
Page segmentation visually breaks a page into content blocks and—based on layout convention and actual content—determines whether or not the block contains internal navigation, ads, useful content, etc.
Based on this structural evaluation, links from content areas are considered more valuable than links from other areas of the page. While search engines certainly are not perfect at implementing this metric, the take-away is that it’s better to have links integrated into relevant content (with good anchor text) than to have them stuck in a sidebar list or on the bottom of the page.
Relevance of Domain & Page:
Terms in your page URL and Title tags are extremely valuable when helping search engines determine the nature of your page content. As we discussed earlier, using deep page URLs that describe the page are valuable in this regard (www.seattleboatours.com/articles/holiday_tours.html). Search engines use semantics to determine the likelihood of content relating to search query terms.
For example, a Google search for ‘allintitle: dog & canine’ (which lists all sites with both “dog” and “canine” in the title) yields 80,300 results, whereas ‘allintitle: dog & shovel’ yields only 50 results. Similarly, ‘allinurl: dog & canine’ (which lists all sites with both terms in the actual URL) yields 15,500 results and ‘allinurl: dog & shovel’ yields zero results. While this example is painfully gratuitous, the point is clear: the engines know that if you search for ‘dog’, pages with the word canine in the URL or title are much more likely to be relevant to you than pages with the word shovel. Conversely a page with the term ‘shovel’ featured prominently in the URL may not be as reliable a source for content with the keywords dog and/or canine.
There is a whole science behind semantic indexing, but all you need to know is this: Page domains and titles that offer semantic relevance to your content convey an impression of reliability and relevance. Similarly, links to you from pages with semantically related content and or titles/URLs create consistency and relevance that the engines will reward.
Visible vs. Invisible Links:
All the links in the world won’t do you any good if the search engines cannot see them. Many sites use tactics to prevent the engines from following certain links on their pages in an effort to avoid spam.
Links embedded as java script, tagged with a nofollow command (rel=”nofollow” following the href URL), included on a page with a meta nofollow or blocked by robots.txt may not be visible to the search engines and, accordingly, pass no link value. Before you expend too much time or effort building links on a certain site or page, make sure you will get credit for them from the search engines.
Indications of Spam or Manipulation:
While high-quality, relevant links will get you a healthy bump in search rankings, spammy, manipulative linking tactics are a good way to get your site flagged for deceptive practices. If most of your links are from ads, linkfarms, domains you own or IP addresses suspiciously similar to yours, the engines will take notice.
Cheap link buys, reciprocal links and brokered links aren’t necessarily bad for getting your numbers up; but the engines can easily detect and discount a pattern of low-quality links from irrelevant pages. All of the algorithm technology exists not only to reward all of the great content and links you’ve built, but to recognize the abundance of useless pages on the web as well and keep it from influencing the search engine results pages (SERPS).
This guide does not cover manipulative link practices in depth; rather, we will focus on illuminating tactics that will provide both short and long-term benefits.
•Visibility, Status and Trust of Linking Domain (Time vs. Weekly World News)
•Semantic Value of Anchor Text (search engine optimization vs. click here)
•Location of Link in Site Structure (Deep, Natural Links vs. Shallow, Spammy Links)
In addition to these elements there are other advanced factors the engines apply when determining link value:
Location of Link on Page:
Page segmentation visually breaks a page into content blocks and—based on layout convention and actual content—determines whether or not the block contains internal navigation, ads, useful content, etc.
Based on this structural evaluation, links from content areas are considered more valuable than links from other areas of the page. While search engines certainly are not perfect at implementing this metric, the take-away is that it’s better to have links integrated into relevant content (with good anchor text) than to have them stuck in a sidebar list or on the bottom of the page.
Relevance of Domain & Page:
Terms in your page URL and Title tags are extremely valuable when helping search engines determine the nature of your page content. As we discussed earlier, using deep page URLs that describe the page are valuable in this regard (www.seattleboatours.com/articles/holiday_tours.html). Search engines use semantics to determine the likelihood of content relating to search query terms.
For example, a Google search for ‘allintitle: dog & canine’ (which lists all sites with both “dog” and “canine” in the title) yields 80,300 results, whereas ‘allintitle: dog & shovel’ yields only 50 results. Similarly, ‘allinurl: dog & canine’ (which lists all sites with both terms in the actual URL) yields 15,500 results and ‘allinurl: dog & shovel’ yields zero results. While this example is painfully gratuitous, the point is clear: the engines know that if you search for ‘dog’, pages with the word canine in the URL or title are much more likely to be relevant to you than pages with the word shovel. Conversely a page with the term ‘shovel’ featured prominently in the URL may not be as reliable a source for content with the keywords dog and/or canine.
There is a whole science behind semantic indexing, but all you need to know is this: Page domains and titles that offer semantic relevance to your content convey an impression of reliability and relevance. Similarly, links to you from pages with semantically related content and or titles/URLs create consistency and relevance that the engines will reward.
Visible vs. Invisible Links:
All the links in the world won’t do you any good if the search engines cannot see them. Many sites use tactics to prevent the engines from following certain links on their pages in an effort to avoid spam.
Links embedded as java script, tagged with a nofollow command (rel=”nofollow” following the href URL), included on a page with a meta nofollow or blocked by robots.txt may not be visible to the search engines and, accordingly, pass no link value. Before you expend too much time or effort building links on a certain site or page, make sure you will get credit for them from the search engines.
Indications of Spam or Manipulation:
While high-quality, relevant links will get you a healthy bump in search rankings, spammy, manipulative linking tactics are a good way to get your site flagged for deceptive practices. If most of your links are from ads, linkfarms, domains you own or IP addresses suspiciously similar to yours, the engines will take notice.
Cheap link buys, reciprocal links and brokered links aren’t necessarily bad for getting your numbers up; but the engines can easily detect and discount a pattern of low-quality links from irrelevant pages. All of the algorithm technology exists not only to reward all of the great content and links you’ve built, but to recognize the abundance of useless pages on the web as well and keep it from influencing the search engine results pages (SERPS).
This guide does not cover manipulative link practices in depth; rather, we will focus on illuminating tactics that will provide both short and long-term benefits.
Friday, February 19, 2010
Why Build Links?
As we’ve just discussed, many link building efforts in the SEO world are done to improve a site’s search engine rankings: Links as votes, as trust, as rank-building influencers, etc. There are, however, other reasons to build links as well
Gaining Direct Traffic:
Oddly enough, search engine spiders aren’t the only ones that see links to your site. Web users visiting sites can and (hopefully) do click on those links, generating direct traffic to you. Once again though, it’s worth your while to focus on quality links from relevant pages. How often have you actually clicked on a link you found on an extremely spammy, worthless page? If the original page is garbage, you assume anything it links to is probably garbage as well.
It should come as no shock that humans passively analyze page quality when assessing link value. After all, the search engines ultimately try to algorithmically reproduce the results a human would provide if they had the time to editorially rate every single page in existence.
As such, you will get higher volume and better quality direct traffic from pages that are not only popular and highly trafficked themselves, but relevant to your content.
Visibility, Branding & Influence:
What happens when every time someone looks around online for information about boats, tours or Seattle they see not only links to your site, but comments about you in every prominent blog on the subject? You become an authority in the field. By participating in the community around your niche and building content worthy of links and discussion within said community, you gain visibility, branding and influence.
How you want your image to manifest though is entirely up to you. This is just one more example where quantity may be easy to come by, but quality is what really counts. Do you want to have visibility as that guy who always has useful information, the one everybody should check out if they’re interested in Seattle boat tours? Or do you want to be the Weekly World News of your niche, always complaining of a Loch Ness-like monster in Puget Sound?
As people within (and even outside of) your community begin to recognize and respect your image and your brand, they will reference you and link to you as a resource. Links bring traffic, links bring search results, links bring passion…make your users passionate about your site.
Gaining Direct Traffic:
Oddly enough, search engine spiders aren’t the only ones that see links to your site. Web users visiting sites can and (hopefully) do click on those links, generating direct traffic to you. Once again though, it’s worth your while to focus on quality links from relevant pages. How often have you actually clicked on a link you found on an extremely spammy, worthless page? If the original page is garbage, you assume anything it links to is probably garbage as well.
It should come as no shock that humans passively analyze page quality when assessing link value. After all, the search engines ultimately try to algorithmically reproduce the results a human would provide if they had the time to editorially rate every single page in existence.
As such, you will get higher volume and better quality direct traffic from pages that are not only popular and highly trafficked themselves, but relevant to your content.
Visibility, Branding & Influence:
What happens when every time someone looks around online for information about boats, tours or Seattle they see not only links to your site, but comments about you in every prominent blog on the subject? You become an authority in the field. By participating in the community around your niche and building content worthy of links and discussion within said community, you gain visibility, branding and influence.
How you want your image to manifest though is entirely up to you. This is just one more example where quantity may be easy to come by, but quality is what really counts. Do you want to have visibility as that guy who always has useful information, the one everybody should check out if they’re interested in Seattle boat tours? Or do you want to be the Weekly World News of your niche, always complaining of a Loch Ness-like monster in Puget Sound?
As people within (and even outside of) your community begin to recognize and respect your image and your brand, they will reference you and link to you as a resource. Links bring traffic, links bring search results, links bring passion…make your users passionate about your site.
Why Search Engines Measure Links
PageRank and Links as Votes:
Larry Page and Sergey Brin publicly pioneered the use of link measurement as an indicator of search relevance when they created the Google search engine. The initial idea behind their legendary PageRank system was that a link to a particular page is equivalent to a vote by the linking page for the linked-to page.
As the theory goes, by measuring not only the keyword relevance on a page, but also the number of “votes” it had, you could accurately determine which pages were considered by the web’s users to be most valuable for the given search terms. Furthermore, links from web pages with high PageRank would be more valuable (considered more authoritative and reliable) than links from low PageRank pages.
This initial model, while revolutionary, didn’t consider the quality of on-page content, trust metrics or semantic relationships and was thus extremely vulnerable to manipulation.
Improvements in Link Quality Scoring:
Over the years all of the major search engines adopted the link-based ranking model with some stylistic variation from engine to engine. The technology, quality and “intelligence” of the various search algorithms continually evolve in an effort to improve the quality of returned search results.
Anchor text is now considered when evaluating the relevance of a given link to the given keywords. If a site about Seattle Boat Tours has lots of links pointing to it with anchor text written as ‘Seattle boat tours’, those links will provide greater value to the link recipient than links with anchor text such as ‘click here’ (at least for searches on “Seattle Boat Tours”). We will discuss anchor text in greater detail in the next section.
Semantic attributes the of on-page text surrounding links is also analyzed. For instance, if a link to Seattle Boat Tours is in the middle of a page about theoretical physics as it relates to the study of Scientology, that link won’t be considered as valuable as the same link with adjacent content about Seattle, tourism, boating, etc.
Search algorithms also consider relationships between linked sites. By analyzing things like IP addresses, reciprocal links and domain registration information, the engines try to determine if the links are valuable organic links, or if they are manipulative, artificial links created solely for ranking purposes.
Links as Quality Control:
By using the methods discussed above to measure link quantity and quality, the search engines create a ranking system that is much harder to manipulate than one based solely upon on-page factors. That is not to say, however, that page structure and actual content are not evaluated. The link-based model simply places more importance on links based upon the theory that only well-designed, content-rich pages will get high-value links from reputable sources.
Trusted Domains:
Link factors such as anchor text, semantic relevance and page relationship certainly matter, but perhaps no factor matters as much as the trustworthiness of the domain providing you with your link. A single link from CNN or The New York Times is worth more “link-juice” than dozens of similar links from no-name blogs and MySpace pages.
Trusted domains have proven over time (ironically, through the acquisition of thousands of trusted links) to be worthwhile and reliable sources of quality information about their given subject matter. As such, when the search engines see that these sites link to you when discussing your area of focus, they pay attention. This tells the engines that a reliable and trusted source thinks you are an expert and you offer content that’s extremely relevant to the topic.
Think about it this way: If the Weekly World News runs the headline ‘Two-headed Dragon Boy Born in New Jersey,’ would you take it seriously? No? What if the same headline was on the cover of Time magazine? In nearly everyone’s mind, the Time link to ‘Two-headed Dragon Boy Born in New Jersey’ is far more valuable and credible than the same story from the Weekly World News.
This is why we don’t go into a state of shock when we see bizarre WWN headlines every week in the grocery checkout line: they’re simply not reliable for anything other than a laugh. In the online world, the search engines use their artificial intelligence algorithms to make similar determinations. Thus, 50 links from Moe-does-Mortgage.com is not nearly as valuable as one link from Bankrate.com or CNN’s money.com.
This is a self-perpetuating process on the web. The more trusted, valuable links your site receives, the more trusted and valuable your site (and the links you give) becomes.
Larry Page and Sergey Brin publicly pioneered the use of link measurement as an indicator of search relevance when they created the Google search engine. The initial idea behind their legendary PageRank system was that a link to a particular page is equivalent to a vote by the linking page for the linked-to page.
As the theory goes, by measuring not only the keyword relevance on a page, but also the number of “votes” it had, you could accurately determine which pages were considered by the web’s users to be most valuable for the given search terms. Furthermore, links from web pages with high PageRank would be more valuable (considered more authoritative and reliable) than links from low PageRank pages.
This initial model, while revolutionary, didn’t consider the quality of on-page content, trust metrics or semantic relationships and was thus extremely vulnerable to manipulation.
Improvements in Link Quality Scoring:
Over the years all of the major search engines adopted the link-based ranking model with some stylistic variation from engine to engine. The technology, quality and “intelligence” of the various search algorithms continually evolve in an effort to improve the quality of returned search results.
Anchor text is now considered when evaluating the relevance of a given link to the given keywords. If a site about Seattle Boat Tours has lots of links pointing to it with anchor text written as ‘Seattle boat tours’, those links will provide greater value to the link recipient than links with anchor text such as ‘click here’ (at least for searches on “Seattle Boat Tours”). We will discuss anchor text in greater detail in the next section.
Semantic attributes the of on-page text surrounding links is also analyzed. For instance, if a link to Seattle Boat Tours is in the middle of a page about theoretical physics as it relates to the study of Scientology, that link won’t be considered as valuable as the same link with adjacent content about Seattle, tourism, boating, etc.
Search algorithms also consider relationships between linked sites. By analyzing things like IP addresses, reciprocal links and domain registration information, the engines try to determine if the links are valuable organic links, or if they are manipulative, artificial links created solely for ranking purposes.
Links as Quality Control:
By using the methods discussed above to measure link quantity and quality, the search engines create a ranking system that is much harder to manipulate than one based solely upon on-page factors. That is not to say, however, that page structure and actual content are not evaluated. The link-based model simply places more importance on links based upon the theory that only well-designed, content-rich pages will get high-value links from reputable sources.
Trusted Domains:
Link factors such as anchor text, semantic relevance and page relationship certainly matter, but perhaps no factor matters as much as the trustworthiness of the domain providing you with your link. A single link from CNN or The New York Times is worth more “link-juice” than dozens of similar links from no-name blogs and MySpace pages.
Trusted domains have proven over time (ironically, through the acquisition of thousands of trusted links) to be worthwhile and reliable sources of quality information about their given subject matter. As such, when the search engines see that these sites link to you when discussing your area of focus, they pay attention. This tells the engines that a reliable and trusted source thinks you are an expert and you offer content that’s extremely relevant to the topic.
Think about it this way: If the Weekly World News runs the headline ‘Two-headed Dragon Boy Born in New Jersey,’ would you take it seriously? No? What if the same headline was on the cover of Time magazine? In nearly everyone’s mind, the Time link to ‘Two-headed Dragon Boy Born in New Jersey’ is far more valuable and credible than the same story from the Weekly World News.
This is why we don’t go into a state of shock when we see bizarre WWN headlines every week in the grocery checkout line: they’re simply not reliable for anything other than a laugh. In the online world, the search engines use their artificial intelligence algorithms to make similar determinations. Thus, 50 links from Moe-does-Mortgage.com is not nearly as valuable as one link from Bankrate.com or CNN’s money.com.
This is a self-perpetuating process on the web. The more trusted, valuable links your site receives, the more trusted and valuable your site (and the links you give) becomes.
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