Over the summer, I hope to take a closer look at all the wonderful work contained in the collection of Master's Final Projects: 2007.
I don't think that there is an official API for Google Reader although Niall Kennedy documened an unofficial Google Reader API a while back.
Shaking up tech publishing (Loud Thinking) is an interesting thread on the economics and incentive structures behind writing a computer book (such as what I'm doing right now!)