Micropolis:

The first-ever massive Micropolis collaborative layout will be held at Brickworld this year. Your task: To construct one or more Micropolis modules to add to the huge city layout. The micropolis standard can be found here:

http://twinlug.com/micropolis-micro-city-standard/

and a number of sample MOCs built according to the standard can be found at the recent Micropolis 'Bad Day' building contest at Reasonably Clever:

http://reasonablyclever.com/lego/contest/badday/index.html

We are hoping to have a HUGE layout, and already have a large number of modules confirmed.

Get building, and have fun!