Charlene Li and Josh Bernoff, authors of the new book, Groundswell, are asking readers to send in short reviews via Twitter.

“We love bloggers reviewing the book, but you may not have a blog, or have time to write a few paragraphs. So why not make it easy. Twitter your review,” they urge.

With Craig Newmark (Graig’s List), Steve Rubel and Guy Kawasaki already endorsing the book with their ‘mini reviews’ that could be a bit daunting…