First, let me say what a pleasure it was to sit down and talk with Andrew from Mixergy.com. He's done some great interviews, and I'm honored that he wanted to have a chat with me. Andrew contacted me when he discovered that I built an application for MySpace called IMe. I was also the lead front end developer for the original team that built MySpace's MySpaceIM desktop chat application.
During the interview, we talked about the process a company or individual would go through to get an application on a social network such as Facebook or MySpace. Here's a link to the blog post and interview audio. He's got a summary posted, a video of his thoughts on the interview and a link to download it. Enjoy!