Zimmer and partner Logan Green began thinking of Zimride when Logan was at University and Zimmer was at Lehman Brothers.

FORBES: How To Win Friends AND Cut Your Travel Costs

Crews began preparing snow plows at Logan International Airport, where officials said the storm is expected to cause more flight delays and cancellations.

CNN: Monster blizzard set to slam Northeast

Crews began preparing snow plows at Logan International Airport, where officials said the storm is expected to cause flight delays and cancellations on Friday and well into Saturday.

CNN: Monster blizzard set to slam Northeast

Flights began to resume Saturday in New York City-area airports, but Boston's Logan Airport remained closed and more than 2, 000 flights in the region were canceled Saturday, according to Flightstats, bringing the total since Friday to 6, 333 flights.

WSJ: Storm Sweeps Through Northeast U.S.