If you like APIs and mashups, you should check out ProgrammableWeb – it’s a directory/advice/analysis site for all things API-ish.

Most recently, they’ve been working on building a subsection for government APIs, and have included 5 APIs that we’re involved with, as well as APIs from MySociety.org and a whole lot more.

And who knows, we may have another contest someday, involving mashups that combine these various APIs.