Social Media Marketing & Wikipedia

The further reading section of wikipedia's page on social media suggests the book titles listed below. I was able to borrow all five of the books from my local public library, and hope to use them - along with information I'm getting from Chris Brogan - to gain a better understanding about social media marketing (SMM).  

• The Wealth of Networks, How Social Production Transforms Markets and Freedom. Yochai Benkler, 2006. ISBN 978-0-300-12577-1
  
• Everything Good is Bad for You. Steven Johnson, 2005. ISBN 1-57322-307-7
• The Wisdom of Crowds, Why the Many are Smarter than the Few and How Collective Wisdom Shapes Business, Economies, Societies, and Nations. James Surowiecki, 2004. ISBN 0-385-50386-5
• Naked Conversations, How Blogs are Changing the Way Businesses Talk with Customers. Robert Scoble & Shel Israel, 2006. ISBN 978-0-471-74719-2
• Wikinomics, How Mass Collaboration Changes Everything. Don Tapscott & Anthony D. Williams, 2006. ISBN 978-1-59184-138-8