Two months ago I was doing some client work that ended up with me creating NinjAuth - a generic authentication layer between FuelPHP's auth package and social networks. I've been working on it a fair bit on and off since then and in the last week I've ported it to CodeIgniter for use with PyroCMS and it's looking brilliant! You can now use PyroCMS to drive your social site. Login and register with Facebook, Twitter, etc, attach multiple accounts to users, post blog articles to Facebook and much more on the way. Here's a video.
Build APIs You Won't Hate
Everyone and their dog wants an API, so you should probably learn how to build them.
Tasked with building an API for your company but don't have a clue where to start? Taken over an existing API and hate it? Built your own API and still hate it? This book is for you.
Trade Twitter profiles like commodities in the awesome game twiDAQ.