Machinima uses 3-D computer graphics rendering programs to create cinemagraphic productions. You-tube abounds with short movies from Second Life and other virutal worlds.
MachinExpo is celebrating its 4th year. http://blog.machinima-expo.com Deadline for submitting Machinas is Sept. 30.
Each year over 50 films are screened. Activities include panel discussions, interviews and the chance to inteact with international machinimists. Events take place on the Internet and in Second Life.
Webpage also contains a list of resources of interest to makes and fans of machinima.