When I wrote my Ultimate Guide to DoFollow plugins, I hadn’t read a solution to removing Nofollow from comments for Blogger that actually passed the link credit from your own domain.
Nofollow On Blogspot
I try to keep many of my posts updated as often as possible, and I believe that Ronnie’s guide on Tips for Blogspot is currently the easiest to understand.
Ronnie also seems to be extremely experienced with Blogspot, and is doing a lot of things I honestly never thought about doing, or even though was possible.
He has written a much more technical guide for those publishing using blogger on their own servers.
The example he uses is for parsing comments to remove link attributes such as nofollow.
So you can now share link love to your commenters on Blogger