Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
MakCorps - Hotel Price Comparison API
FB Nearby Friends - Discover which Facebook friends are nearby or on the go
HotelTonight Escape - The best getaway deals for tonight (or the weekend)
Facebook Local - Discover places to go and events happening near you
Hotellook - Compare hotel deals from all the leading booking agencies