We are having a meetup for people using Amazon's Mechanical Turk at our office in San Francisco June 10th. People directly using Mechanical Turk for interesting applications are especially encouraged to come. We're going to have the Amazon VP of Mechanical Turk on hand for Q/A and we have a great lineup of interesting people talking about what they're up to.Please RSVP here: http://www.meetup.com/Amazon-Mechanical-Turk-Crowdsourcing-Work-Meetup-Group. My company is Dolores Labs (blog.doloreslabs.com) and we've built an application on top of Turk to manage data quality.