I'd just like to add that a search for "git hosting" on DDG ("duckgoing" if you will) yields, aside from the SO quick info box (which mentions Gitorious and Redmine), unfuddle.com is the first result, github doesn't show up until the fourth of fifth, and I haven't scrolled down to look for Gitorious. It does, however, show http://git-scm.com/tools as the second result, which includes a summary of the most popular hosters divided by categories.