Called “One of the Most Influential Women in Technology” by Fast Company, Charlene Li is an accomplished speaker on the subject of social media — the topic of her notable book Groundswell  (Harvard Business Press, 2008) and her research.  You can see her speaking on interactivity and social media here:  http://tinyurl.com/5pmsr8 and find her book here (co-written with Josh Bernoff): 
http://tinyurl.com/yefzfxy.

Charlene was a V-P and analyst at Forrester Research and a Harvard Business School graduate before she launched her own company, the Altimeter Group, last year.  She is a thoughtful, engaging consultant and speaker and she practices what she preaches – interactivity – through Twitter, her blog, her research, and her speaking.

She’s currently hard at work on a new book about open leadership and organizations, due out next year, so stay tuned to  http://www.altimetergroup.com/ to keep up with her latest thinking.