Check out http://atanswerme.com/ for a clever repurposing of Twitter as a crowdsourcing question and answer app.
"NYC Seed is a public and private joint venture among six city agencies and organizations...The $2 million fund will invest up to $200,000 per company." See nycseed.com
"NYC Seed funds seed-stage technology companies in New York City. Through the combined efforts of New York City’s most innovative organizations, NYC Seed provides funding, mentoring and support to create the next generation of companies in NYC. "
"The ad-supported service lets users download audio tracks and music videos for free. It pays labels and other rights holders with ad revenue. Listeners must log on to the site at least once every couple of months, otherwise the content can't be played."