In a nutshell, most blogs are set up as "No Follow," meaning Google won't consider your link when you leave it in a comment on someone else's blog. This was done to prevent comment spam.
Blog Contest Station recently asked how to remove the "No-Follow," so I figured this may be something more of you are interested in.
It is really easy to change the code in your blog to make it "Do Follow," which means that when someone leaves a comment, Google includes your link when it does its thing. When you leave a comment on a "Do Follow" blog, you are ultimately helping yourself and your Google rank.
You may have seen this badge here and there and heard bloggers mention their blog is "Do Follow." I love blogs that are "Do Follow" blogs and jump at the chance to leave a comment.
For more info and to learn how to change your blog to a "Do Follow" blog, check out Randa Clay Design. She also made the icon shown above.
And yes, this blog is "Do Follow." Help your blog's rank by leaving me a comment.