Cloud Foundry, by vmware

Cloud Foundry


Amazon, Google, Microsoft Azure: they all offer proprietary "cloud" hosting service.
There are also Rackspace, even Dell, offering "cloud services".

On the other side, vmware has created a cloud platform, and made it Open Source.
They would like this to be a "Linux for the Cloud".

vmware cloud, story @ Wired

HP using Cloud Foundry for its Cloud offering, story @ Wired

Microsoft Open Source: ASP.NET MVC, Web API, Razor

ASP.NET MVC, Web API, Razor and Open Source - ScottGu's Blog
Microsoft is serious about open source.

In addition to ASP.NET MVC that was already open source,
they have now added ASP.NET Web API and ASP.NET Web Pages (aka Razor)
under an open source license (Apache 2.0).

More from Scott Hanselman

http://aspnetwebstack.codeplex.com
http://asp.net/open-source