It’s too late to get tickets for today’s Startup 2009 conference in NYC, but you almost don’t even need to be there. Event co-host Silicon Alley Insider, a NYC tech blog, is streaming the entire conference via live video now (watch below) and attendees inside are busy giving a blow-by-blow on Twitter.

The one-day conference features interviews with seasoned entrepreneurs and presentations by 10 emerging online companies carefully chosen by a panel of venture capital judges to compete for “bragging rights, buzz, and a $50,000 prize.” Here are the companies in the running: Advanced Marketing and Media Group, Adzoomi, Article One Partners, BeliefNetworks, Expensify, GlobeFunder Ventures, Good Health Advertising, Micronotes, Path 101, and Portfolio Monkey.

Update: Article One Partners, a startup that helps company’s establish patents or fight already existing ones, took the prize at Startup 2009.  Watch an interview with the company’s founder Cheryl Milone moments after the win (via The Deal).