HUFFINGTON POST - Oct 10 - Tandem, a new dating site, lets singles bring their friends along on their hunt for love. "People are a lot more at ease when they're with someone they know, and so we wanted to build a site that leverages that," said founder Will Tungpagasit, who formerly served as the lead engineer at TaskRabbit, a startup offering pay-per-task personal assistants. Users don't need to be single to sign up for Tandem, they need to know someone who is. New users are required to add at least one "wing" -- Tandem lingo for the friend with whom one is pairing up -- to register for the site. Tandem, which is free to use, will be available in New York, Boston, Chicago, San Francisco, Los Angeles, Salt Lake City, Madison, Wis., and Austin, Texas, at launch.