4Twitter of BrianSolis: http: //www.briansolis.com/.
5Chris Anderson, Free: The Future of a Radical Price, Hyperion Press, July 07, 2009.
6Chris Anderson, The Long Tail: Why the Future of Business Is Selling Less of More, Hyperion Press, July 09, 2008.
7Nicholas Cart, The Big Switch: Rewiring the World, from Edison to Google, Norton, W.W.&Company, Incorporated, January 19, 2009.
8Bonk, Kathy, and Tynes, Emily, and Griggs, Henry, Strategic Communications fop Nonprofits: A Step-By-Step Guide to Working with the Media, Jossey-Bass, 2008.