| title | ISBN-13 (ISBN-10)  | year of publication | 
|---|---|---|
| Content Nation: Surviving and Thriving as Social Media Changes Our Work, Our Lives, and Our Future | 978-0-470-37921-9 (0-470-37921-9)  | 2009 | 
| Content Nation: Surviving and Thriving As Social Media Changes Our Work, Our Lives, and Our Future | 978-0-470-45905-8 (0-470-45905-0)  | 2009 |