My e-book on Social Networks, their benefits and risks to schools http://bit.ly/snetworks is capturing interest. It was reviewed in the TES here http://bit.ly/dD9zhj last week (Gerald Haigh is no relation!) and an extract has been published by ASCL here http://bit.ly/9Wjuuy . It can also be previewed on google books here http://bit.ly/dvZ84e now.