By Kevin Makice
Buy From Amazon List price: $34.99 Amazon price: $22.97
Technical details for folks who want to connect to Twitter via the API (that is, you're writing your own software, either client or web-based).
By Paul McFedries
Buy From Amazon List price: $19.99 Amazon price: Not Available
By Joel Comm
Buy From Amazon List price: $24.95 Amazon price: Not Available
By Tim O'Reilly and Sarah Milstein
Buy From Amazon List price: $19.99 Amazon price: $13.65
An excellent introduction to Twitter, in an easy-to-skim style.
By Hal Niedzviecki
Buy From Amazon List price: $17.95 Amazon price: $13.10
By Jeff Jarvis
Buy From Amazon List price: $26.99 Amazon price: $17.81
Catechism of the cult of Google. "Part prophecy, part though experiment, part manifesto, part survival manual..." From the inside flap.
By Clay Shirky
Buy From Amazon List price: $16.00 Amazon price: $10.88
An insightful and enjoyable book about the profound changes in business and social structures that online communities can create.
By Charlene Li and Josh Bernoff
Buy From Amazon List price: $29.95 Amazon price: $19.77
By Tara Hunt
Buy From Amazon List price: $25.00 Amazon price: $16.50
A great book about how social capital has become a huge force and how to shift your thinking to maximize your "whuffie".
By Clara Shih
Buy From Amazon List price: $24.99 Amazon price: Not Available
A well thought out book on the brief history of online social networks and how businesses can benefit from them, with an emphasis on Facebook.