In a follow up to the Social media panel write up, here are the slides (and a few extra thoughts from yours truly)
Blogging, LinkedIn, forums, wikis, Facebook, Twitter, Google Wave, YouTube, podcast, etc. Each is a tool for your communication.
Each is different and reaches a varied audience. The key is to have the proper message tuned in to the appropriate listeners. Notice, I said Listener. It isn't about the most followers or any other number, it's about those who actually listen to your message.
It is social, so there are mores. Listen first; then Interact / Engage. Above all be Authentic. Transparency on the Internet is a must.