Mark Schaefer’s new book, Return on Influence or ROI, is an interesting and very readable overview of Klout, the rise of Klout, and its importance going forward. I recommend it to all avid tweeters and students of social media: Return On Influence: The Revolutionary Power of Klout, Social Scoring, and Influence Marketing
Despite its title, ROI is NOT a discussion of metrics for social media marketing or the return on investment from SMM efforts. Klout has gained such clout over the individuals tweeting and posting that it merits this book length treatment. I worry from the tone that Mark has bought into the Klout Kool-Aid: However the book is even-handed in its treatment of the issues.
Read the Tao of Twitter first if you haven’t: The Tao of Twitter: Changing your life and business 140 characters at a time
Note: I am moving my social media commentary to another blog, www.smm4biz.com . Please consider checking it out or subscribing if you have an interest in social media marketing. Today I have a further discussion of Mark’s new book –
ROI is a good read, but Klout still sucks! http://wp.me/p1reuk-u
ProfessorGary on Innovation and Marketing 
There’s always going to be multiple services which attempt to game social networks towards their own ends, but i too am getting a sense that klout is escalating the house of cards of follower numbers to levels which makes their own metrics no longer relevant. Thanks for sharing your review, hope to find time to get a copy of the book soon.