Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
rysolv - Fix open source issues, get paid
FB Nearby Friends - Discover which Facebook friends are nearby or on the go
uTask - Hire a coder by having them do a real-world task
Facebook Local - Discover places to go and events happening near you
Teamtailor - Teamtailor is the hub of recruitment that attracts candidates and manage their applications.