When you mention the South Bronx, probably the last thing you think of is telecom. IEEE Spectrum has a nice feature on Urban Telephone and Video, a telecom company based in the South Bronx that competes with Time Warner and Cablevision in offering cable TV, broadband Internet access, and Internet telephony services to New Yorkers:

"In an office building in the heart of the 'hood, on a bustling commercial thoroughfare lined with small grocery stores cheek by jowl with shops studded with large, hand-scrawled signs hawking the latest bargains on household goods and electronics, exists one of the city's original broadband franchises—and the industry's most unlikely success story. The company, Urban Communications Transport, which does business under the name Urban Telephone and Video, has been making a profit in an endeavor that has defeated not a few telecom industry giants..."