Free Online Team Foundation Server [closed]

Upto five team members it is free. Try it :)

http://tfs.visualstudio.com/

Free is TFS hosted on Windows Azure: http://tfspreview.com/

If you need more info about TFSPreview, please read Brian Harry's MSDN blog post: http://blogs.msdn.com/b/bharry/archive/2011/09/14/team-foundation-server-on-windows-azure.aspx

To obtain activation code just register there or contact someone from MS ALM team.

Update: TFS Preview goes live&stable as Visual Studio Online here: http://www.visualstudio.com still free for 5 team members and build server computing time. Another nice feature automatic build&deploy (daily or continuous integration) to Azure. More info: http://azure.microsoft.com/en-us/documentation/articles/cloud-services-continuous-delivery-use-vso/

Readify used to run their TFSNow hosted TFS service, but I don't think it's going any longer. The only others I've heard of, apart from CodePlex, aren't free:

• Phase2
• TeamDevCentral
• Saas Made Easy