Nerd NYC member Lizzie Stark (well, she's new to Nerd NYC, but she was at the last Recess pre-party) just put out a book entitled Leaving Mundania about Larp, both in the U.S. and Europe: http://elizabethrstark.com/leaving-mundania/
It's available at Amazon: http://amzn.to/IhKKb4
Barnes and Noble: http://bit.ly/JUjNdE
and Powell's: http://bit.ly/JrkGGZ
The Recess crowd may recognize some of the people in the book, and certainly some of the cons and LARPs. It's a great read and a book worth supporting and getting out to a larger audience.
And Lizzie will be out and about a bunch of events: http://elizabethrstark.com/events/
