List of good article directories to submit to

http://www.articlesbase.com/
http://goarticles.com/
http://www.amazines.com/
http://www.ideamarketers.com/
http://ezinearticles.com/

just post in comments which ones you use

Another article directories with PR4 and autoaprove:
1. http://www.articleslash.net
2. http://www.fourpxarticles.com
3. http://www.ideamarketers.com
4. http://www.goarticles.com
5. http://www.selfgrowth.com