Sourceforge added svn and git later and also CVS was advanced when it was released. Funny or ironical GitHub also provides centralized version control like svn/cvs via pull requests, which I am not a very big fan of due to unlimited, useless fork lying around without real purpose. So actually github undo what git was set out to achieve, provide a distributed version control.
As stated earlier with the closure of Google code the viable alternative for github are not many, so more the competition better it is. Sourceforge project of the month and list of end-user project pages is nicer then Github. Also I use ohloh.net to compare multiple-project and their activity even if they are on github. If sourceforge can make similar analysis, will use them more.
It is called openhub.net and yes they are bit behind in pulling repository data. But it still gives nice project comparison and also activity charts. If some projects can't be found there, personally use python with pandas and matplotlib to generate the same, but takes a bit of time.
As stated earlier with the closure of Google code the viable alternative for github are not many, so more the competition better it is. Sourceforge project of the month and list of end-user project pages is nicer then Github. Also I use ohloh.net to compare multiple-project and their activity even if they are on github. If sourceforge can make similar analysis, will use them more.