The Classic-Space Group on Flickr is holding a contest hosted by Nightowl 280. You are challenged to build a microscale fleet (and also a ship interior). Warning, Mike Yoder has already set the bar pretty high with his fleet.
Thanks are due to Linus Bohman of The Brothers Brick. I saw the fleet on Brickshelf but didn't know of the contest until following the links from Linus' blog post.
BrickFest PDX 2007 is a gathering of AFOLs in Portland this March. Jeremy Rear presents the Commemerative Event Kit, which presents key Portland landmarks in micro form. Only fest attendees can purchase this kit.
You probably know Shinya Fujita from his masterpiece LEGO Star Wars Trilogy, a complete telling of the original three Star Wars movies, made before LEGO came out with an official SW line. He's got a lot of other great MOCs, including this fun Short Circuit.
Thanks to Brian Muzas for pointing out that LEGO Education is selling a new Micro Building Set. At some point I'll start a set list of official microscale sets.