Krugle helps you find the code you need and the related technical and licensing information to evaluate and use that code. And once you’ve found what you need, Krugle lets you save it and share it. The process of searching, evaluating and communicating
Pligg is Web 2.0 Content Management System (CMS) unlike any other existing CMS. Pligg's Web 2.0 user interface gives your visitors a reason to come back to your site by making them decide on the site's content and giving them the chance to social network.
sabros.us is a CMS to put your bookmarks online with folksonomy support; just like del.icio.us, but the big diference is you will have the complete control of the source code.
F. Abbattista, F. Calefato, D. Gendarmi, and F. Lanubile. Automated Software Engineering - Workshops, 2008. ASE Workshops 2008. 23rd IEEE/ACM International Conference on, (September 2008)