SeamlessWeb, which sold to food service provider Aramark in 2006, is on track to handle $400 million in sales this year. The company doesn't actually take orders, but it processes them through the web and mobile apps for more than 3,850 New York City restaurants. 

There is a grassroots movement in the Bronx to get more SeamlessWeb coverage in their borough. "The bottom line is that we can start getting these type of services that Manhattanites take for granted, but it won't happen unless we create a demand for it," the Bronx News Network blog writes.

A survivor of the dot-com days, SeamlessWeb is experiencing a fresh burst of growth thanks to the proliferation of mobile devices, with less functional browsers and lacking a mouse, making a single app with thousands of restaurants an appetizing download.