I'm pasting an advertisement a member made for our first mapping contest, if anyone's interested:
Staredit Network is hosting the first of what we expect to be many mapping contests: Starcraft II Mapping Contest #1
At the moment, SEN is trying to expand its SCII resources to appeal more to former WCIII mappers - our major problem is that, as a previously SCI mapping community, our members are generally having a rougher time than previous WCIII mappers in moving over to the new Galaxy Edit. This competition is meant to start fixing that - IP is offering small cash prizes ($35 and $15 dollars) to the first and second place winner, as well as mineral prizes (SEN currency for account upgrades). For Starcraft One, Staredit Network was the place to be as a mapper - our members were the ones who discovered Extended Unit Deaths, essentially hacking SC from inside a map - and we're definitely expecting to continue our tradition of innovation with Starcraft 2.
Things that will be judged are the map itself - creativity, professionalism and how fun it is to play - as well as contributions to Staredit Network in the form of Wiki entries, tutorials, resources (which would presumably include useful functions, models, etc). Submissions are due on May 22nd by midnight (-8 GMT), and you should submit both the map and links to your submitted resources (Our SCII Database will be up in a few days, and our Wiki skin is a work in progress) in a post in the linked thread by that time.
All that you need to begin is register, which is done as easily as in any other such website.
If you're looking for more exposure or feedback for a map you're creating, feel free to post about it in our "Custom Map Production" forum. Anyway, check us out, and register for the contest. $35 isn't that much, but if you're already working on something, why not get something out of it? Don't forget to visit occasionally afterwards, too, because there will be more competitions to come.