Seems the popularity of GitHub disrupt all similar services, SourceForge is on resuscitation for years and although not closed it’s barely used just for legacy projects. Google Code is in same situation, so Google decided to cut the agony and close it.
They stopped to accept new projects and the site functionality will be keep same till August 2015 then it will be put in read only mode and early in 2016 completely shut down. There is new tool which allow you to export your project to GutHub https://code.google.com/export-to-github
olimex 
Mar 13, 2015 @ 11:57:52
Wow. Not that I have a particular interest in the site, but I do wonder whether they’ll leave some form of redirection alive – because this will obviously break a lot of old URLs, and only a fraction of those will ever get updated…
Mar 13, 2015 @ 12:17:59
“SourceForge is on resuscitation for years and although not closed it’s barely used just for legacy projects”
Of course, that they’ve taken to allow to bundle Adware with installers if the project owner does opt in might also have something to do with that… (https://sourceforge.net/blog/today-we-offer-devshare-beta-a-sustainable-way-to-fund-open-source-software/)
I’ve lost all trust into things hosted on sourceforge due to that move.
Mar 13, 2015 @ 14:26:02
I gave money to gitchain, but the guy never had time to work on it:
http://gitchain.org/