I wanted to let you know that my Introduction to Chatter article is now available. I tried to make sure I covered everything you need to start extending Chatter, and making it your own. (I have some ideas, and would love to hear yours) There is a lot of discussion around the Chatter Model (by far the biggest question we have been getting from the developer community,) some handy tips for working with Chatter in your Developer Edition, and of course, LOTs of code/SOQL samples.

 So, read up, jot down your thoughts and questions, register for the upcoming Chatter Developer Preview Tech Talk, (we have some cool demos and code to share, so make sure you attend), share, and as always, feedback is appreciated!