Amazon Web Services and startups have always gone together like peanut butter and jelly, and Amazon wants it to stay that way. Toward that end the cloud services giant launched its sixth annual AWS Global Start-Up Challenge on Friday. For this round, Amazon seeks companies attacking big data and high-performance computing; gaming; consumer applications and business applications. The winners in eachcategory will get $50,000 in cash and $50,000 in AWS credits and services for a year. But the competition also brings exposure both to the media and to potential investors. Read the full story at Giga OM.