List of site with Pagerank 3-4 :

http://www.expertcruiser.com
http://blogs.speech-writers.com/
http://www.wordpressmax.com/
http://www.rosshetherington.com/
http://www.howtospoter.com/
http://newestonthenet.com
http://freeadblogger.blogspot.com/
http://www.blogsthatfollow.com