Backlinks Do Follow Blogs PR3-PR6

I did some reading today in StartUpBiz about getting backlinks to your blog by posting comments in other people's blogs. The article I read stated that some search engines do not follow comments in certain blogs but the owners can install a plug in that allows the search engines to follow the comments and therefore index the comments and the associated hyperlinks in them as backlinks to your blog.

The author provided a list of PR3-PR6 blogs and in the comments of the post, a few other blogs are mentioned as well.

http://sta.rtup.biz/forum/topics/2084667:Topic:414

Here is more info about Do Follow...
http://www.dofollow.us/