See this thread:
http://somersoft.com/forums/showthread.php?t=107566
Just keep monitoring the forums.
Much better than many of the meetings on "meetup.com". Some seem to be run by people directly pushing their products and services.
Try to get yourself to one of the Somersoft meetings. There is one organised for 20 May. It's very helpful for building knowledge on how to go about it.