GNA! is a free software hosting site which is run by the developers of the popular Savane software development  tracking system. GNA! offers free hosting for Free Software projects providing a lot of very useful services, including a bug tracker, a news reel, Subversion repositories, users mailing lists and more.

 Tagsistant uses GNA! for two reasons. The first one is its simplicity of use. The second one is that it's always better to share software than to hide it in a dark corner of the Internet