Carrot2 is an Open Source Search Results Clustering Engine. It can automatically organize small collections of documents (like, ehm, search results), into thematic categories. More info --------- http://project.carrot2.org Code --------- We host the source code at github now. https://github.com/carrot2/carrot2 or git clone git://github.com/carrot2/carrot2.git Mailing list --------- carrot2-developers@lists.sourceforge.net