FunOrb is a minigame website created by Jagex (the makers of RuneScape), that lets free users play games, but also offers the option to subscribe for other features such as the ability to play in full screen, and also get access to other exclusive games. They both use the same username system, so a registered username can be used on both FunOrb and RuneScape. The games are written in Java, and the multiplayer ones let you chat to friends on different FunOrb multiplayer games and the RuneScape game too through its messaging system.
dT69: Play me at Tetralink on FunOrb
S101: No you'll give be an ass-kicking like those other times