Delegates, Lambda and Linq

This is by far the best description of how Lambdas and Linq came about and have evolved.
Also has a good description of all the Linq operations. Nice to have them all written down.

http://wblo.gs/d75

Web API Examples

I bumped into some useful samples from MSDN for examples of using Web API.

http://blogs.msdn.com/b/webdev/archive/2012/08/26/asp-net-web-api-and-httpclient-samples.aspx