, a site that enables people to organize get-togethers around their common interests, has raised an undisclosed sum from Union Square Ventures.

Meetup, which was founded in 2002, has been used to organize political advocacy groups, book clubs, sports teams, urban tech meetups and much more. The company previously raised $2 million from eBay, Draper Fisher Jurveston, Omidyar Network, Allen & Company and Esther Dyson.

VB's research team is studying web-personalization... Chime in here, and we’ll share the results.