I get frequently asked about good social media resources so wanted to take a moment and post what I think are some of the top resources out there:

Books

1. Putting the Public back in Public Relations, Brian Solis & Deirdre Breakenridge (March 1, 2009)
2. The New Rules of Marketing and PR, David M. Scott (November 3, 2008)
3. The New Influencers, Paul Gillin (May 1, 2009)
4. Web 2.0: A Strategy Guide, Amy Shuen (August 7, 2008)

Blog

1. PR 2.0, Brian Solis
3. Scobleizer, Robert Scoble

I know there are loads more but this is just a list of resources I can verify are helpful.  If you have suggestions or think something adds to this list feel free to let me know.