Are you interested in creating mashups? If so then this opportunity may be of interest to you. ESRI has recently announced a Mash-up competition with the first place prize of $10,000!
The guidelines for this competition are relatively simple: construct a mashup using ESRI’s ArcGIS Online content and Web APIs, Publish the related URL, and create a YouTube video describing your application. The deadline for this competition is March 5, 2010.
For additional details visit: http://www.esri.com/software/mapping_for_everyone/api/mashup.html