HopStop is a really cool site that provides door-to-door directions for using mass transit systems in major cities. Lot’s of really cool features and functions. Check out the advertising section that provides detailed information about the site demographics and traffic, as well as information for agencies and small/medium sized business advertisers. They are packaging this data really smartly and it’s not hard to see how they have build a really lucrative business.

HopStop is your city transit guide. We provide door-to-door subway and bus directions and maps for New York City. You can also search for places to eat, drink, sleep and see in the City Guide.

With HopStop you can:
– Send directions by e-mail or text message to a cell phone directly from the website
– Plan a trip with multiple destinations using the Itinerary.
– Get directions or the locations of nearby subway and bus stops remotely on your cell phone or PDA with the HopStop Mobile service.

[From HopStop.com - Subway Directions and Bus Directions for New York City (NYC)]

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