Free Social Bookmarking Script

I found this social script and I think it is very good software to build a social bookmarking website like digg.com. Other than it is a free software, it will also provide you with very cool features to build a very good social bookmarking website. Here you go: www.pligg.com.

The best thing with social bookmarking website is the content is updated automatically and this is what search engines like.