I just launched my weekend project, findthemes.net. Findthemes is a theme search engine for various Content Management System and it built with cakephp. Currently it has collections for wordpress themes. In the future I will add another CMS themes to the collections such as tumblr and drupal.<p>I am not using crawler to indexing themes. To keep content quality, I adding themes manualy. For you guys, themes creator, you can also submit your themes to findthemes.