Jack Moffitt's talk X is for XMPP: An Open Messaging PrimerFebruary 2nd, 2009
Jack Moffitt spoke twice at BarCamp this year. On day one he covered Start-ups and you can find that talk here. On the second day he covered XMPP, a messaging protocol he has been looking into and using. This talk covers some groud to get you up and running with XMPP is and can do.