>It's a non-MS open source tool embedded in .NET as a scripting engine and is truly cross-platform so it probably should have a separate general category, not in .NET:
>http://stackoverflow.com/questions/tagged/lua.net
>http://ttuxen.wordpress.com/2009/11/03/embedding-lua-in-dotnet/
>http://www.lua.inf.puc-rio.br/luanet/
>http://www.gamedev.net/page/resources/_/reference/programming/sweet-snippets/using-lua-with-c-r2275
>
>Lua would probably be considered a competitor to Razor as a scripting language. In addition to all the portable device programming it does, it supports multithreading and web development too.
>
>I personally first saw LUA being used to write PlayON scripts embedded in .NET on Windows to access various video content from web sites on my TV. The first way to get this functionality from PlayON was to write a .NET plugin but it became MUCH easier to do after they intrduced doing the same with LUA scripts. The result: many more channels and content.

I have added a LUA forum. Please, let me know about some additional categories you would see fit in there. I only created some generic categories to start with.