Eurogamer has word on another revelation from last night's QuakeCon keynote, as id Software reveals plans for Quake Zero, a web-based variation on Quake III Arena that will be supported by advertising. This is described by John Carmack as an "experimental" project, but could lead to a second team working on a tech5-based Quake game. There's more about this on Kotaku, where Todd Hollenshead admits some of the motivation for such a project is to regain some of id's preeminence in the world of competitive online gaming, and a browser-based shooter should allow access to the game for almost anyone with a computer.