I participated in Ludum Dare 27 last weekend. Instead of Flash I went ahead with Game Maker Studio, which is often derided among "real" game developers, but I like for the speed I can get things up and running.
This site has been up for a while, but as of May 16th 2013 it is now built on top of Asp.net MVC 4 and is fully data driven. And as of May 30th 2013 just about all the features are up and running as well.