This video discusses:
1. How Public relations can benefit from social media
2. How to communicate with the customers instead of to the customers
3. Blogging from the inside
4. "Ideavirus"
If you would like to read the referenced manifestos please go to Dierdre Breakinridge's PR 2.0 A Communicator's Manifesto. I also reference Seth Godin's Unleashing An Ideavirus.