With just two weeks left until the News Challenge's deadline, Knight's John Bracken and Jose Zamora will answer your questions about the contest during a Thursday live chat.

Who can apply? What do we mean by those categories? And how much money is up for grabs anyway? Ask away, at' 1:30 p.m. EST, at www.newschallenge.org.

Before you do, check out this Q and A with Bracken about the challenge's four new categories: mobile, authenticity, sustainability and community.

Knight News Challenge 2011: A Q and A with John Bracken from Knight Foundation on Vimeo.