Good Gear Guide
In Pictures: 10 most successful open source projec...
While not as big as the other two WCM platforms on our list, DotNetNuke has had a banner year. Initially, Microsoft failed to give DNN, a tool for developing on Microsoft's .Net platform, the support it deserved. That seems to have changed. Microsoft has made DNN available on its Azure cloud platform and has even entered into a partnership to introduce DNN to more of the Microsoft channel. In the meantime, DNN continues to add lots of functionality around e-commerce, cloud-hosted options and much more.
In Pictures: 10 most successful open source projects of 2012