There have been two LAMMPS User Workshops. The next one will be held in 2012 or 2013. The link for each workshop shows the program with a list of the talks with links to PDF or PPT versions of the slides.
Held in Albuquerque, NM at the Univ of New Mexico conference center
Participants = around 150
Go-karting activity pics:
The last pic is the 3 "winners" with the fastest lap times. Left to right: Matt Lane (Sandia, 3rd place), ??? (1st place), Enrique Martinez (LANL, 2nd place). Do not ride in a car driven by these people.
Held in Albuquerque, NM at the CSRI building at Sandia National Labs
Participants = around 60