This year, ride-sharing services Lyft and Sidecar amassed millions in new funding. Uber, which lets passengers hail idle town cars with their smartphones, expanded to new cities from San Francisco to New York. And Airbnb, which makes it easy for people to rent out their homes or rooms for short periods, expects to be filling more rooms per night than Hilton by the end of the year.
And yet, in a number of cities across the country, these businesses are illegal. New things are scary. And new things that grow really fast are the scariest.
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