Some dofollow blog for you comment. List here: http://www.freeseotheme.com/2010/08/some-pr5-dofollow-blog.html Please dont spam
I think its always good to comment on such high pr do follow from where you can generate some good backlinks to the site.
I noticed: please dont spam I've more than 2K .edu dofollow blog, but I think I cant share because all them will close comment form
Saying please don't spam with people on DP is like asking a little kid to act like an adult. Glad that you shared the list though.