PartyUP - See videos from the best nightlife venues in your city.
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Discotech - Opentable for nightlife. Tickets, guest lists, and VIP.
FB Nearby Friends - Discover which Facebook friends are nearby or on the go
Partle - Revolutionizing the way people get together
Facebook Local - Discover places to go and events happening near you