... that should be on Sociam reading lists: Steven Johnson, Future Perfect. http://www.amazon.co.uk/Future-Perfect-Case-Progress-Networked/dp/1846147115/ref=sr_1_1?s=books&ie=UTF8&qid=1361451753&sr=1-1 Review in the Economist at http://www.economist.com/news/business-books-quarterly/21569366-reaching-out Cheers Kieron