Bus travel is enjoying a renaissance, particularly on the east coast, where the established inter-city Chinatown buses now have competition from flashy new upstarts like BoltBus and MegaBus. With fares under $20 (including promotional $1 fares), free wi-fi, power outlets, frequent traveler programs and no TSA security hassles, taking the bus between cities like Boston, New York and Washington DC is a much more palatable option.  And now there's a central clearing house for schedules, information and availability:    BusJunction.com aggregates availability in real-time, then ports you over to the bus operator's website for booking.