NEW YORK— The New York City art elite may be unaware of a cultural phenomenon boiling right under their noses: "Silicon Alley" (as opposed to the West Coast's Silicon Valley) is the going name for New York's burgeoning technology community, a combination of home-office programmers, start-up businesses, venture capitalists, and cheerleading groupies who have given rise to such Internet giants as Foursquare and Tumblr. But a little bit of Silicon Alley made its way to Chelsea last weekend with an Art Hack Weekend hosted jointly by new media space Eyebeam and The Creators Project.