Getting your website linked by others is one of the most effective ways to market your site. Doing so properly takes a bit of work, but it makes your site much more likely to be found by your target audience.
Keywords that link to your site are very important. This is the reason websites that ask for a link usually ask you to put some specific text in the link text. The keywords tell a search engine what your site is about.
Link text serves nearly the same purpose as your web page’s TITLE. Except in this case, the text is contained in someone else’s website. It’s the same reason why many bloggers make up interesting blog post titles with good keywords in them. These keywords tell the audience and the search engines the content contained in the page.
In fact links are so important, a page can rank in the first position in major search engines, even if the page doesn’t have the keywords that have been searched for. As long as the links pointing to the page have the keywords and there are enough links pointing to the page, it will get ranked at or near the top of search results.
Here’s an example. If you were looking for ways to speed up your computer and you saw a link that had the text “click here” versus a link that says “Speed up your PC 50%”, which would you more likely click on? Most people looking for a solution would click on the more descriptive link. A search engine will does something similar in its ranking. It will rank the page with the better descriptive link TITLE higer.