EZ Rewriter

http://www.ezrewrite.com/

Article Changer
http://www.articlechanger.net/

The Best Spinner Demo
http://demo.thebestspinner.com/

Quick Content Wizard
http://www.quickcontentwizard.com/

Article Rewriter
http://article-rewriter.appspot.com/

Free content rewrite tool
http://e-articles.info/content-rewrite/

Article Spinner
http://www.autorewrite.com/article/spinner/

Free Article Spinner
http://www.freearticlespinner.com/indexb.html