哪个是开始小型模块开发业务的更好平台：DotNetNuke或Umbraco？

I am thinking of making some extra revenue on the side by becoming a module developer either for DotNetNuke or Umbraco. I still want to keep my full time job. I wanted to know which market is more promising. I know there are thousands of modules for DNN (just browse snowcovered.com). While DNN is a much bigger market, it seems to be crowded with a lot of competition versus Umbraco which is smaller but it looks like it lacks modules in certain categories. However I don't know if Umbraco is widely used or whether its customers are looking for development work.I am thinking of making some extra revenue on t