I just learned about A real cool way to find thousands of dofollow blogs using Google Image Search.

A lot of “dofollow” blogs use a plugin that shows up along with an image badge on their blog.
The default alt tag text for this image is “U Comment I Follow”.
With that said you can simply go to Google Images and search for “U Comment I Follow”,
thousands of results will come back. Most of these results come from blogs that use the
plugin which allows live links to be published in their comments.
You can add keywords to your search to find blogs related to your niche if you type in “u comment” + “marketing” or anything else. This can help you get some extra traffic although it will not effect SEO at all.

You can also search for the image file names themselves.
File names to search:
• ifollowblue.gif,
• ifollowgreen.gif,
• ifollowpink.gif,
• ifollowpurple.gif,
• ifollowltgreen.gif,
• ifolloworange.gif,

This is an extremely powerful secret for anyone who decides to use it wisely. Make sure you don’t spam your comments because that will force the blogger to remove Do follow links and will remove the value of your link. Try asking a question or posting something that contributes to the blog. Also on your name try using a playful variation of your name and your keyword for example “Firstname “affiliate marketing guru” Lastname” this will increase the chances of getting your comments approved and will appear less spammy.

Technorati Tags: Dofollow blogs, link building