Lunchclub - Curated 1:1 professional connections
Sporteventus for iOS - The worldwide search engine for sporting events and tickets
Virus Cafe - Make a friend in 2 minutes
Jukely - Go to hundreds of concerts for one monthly fee 💃
Caliber - IM for LinkedIn. Instantly chat with your business contacts.
TicketHarbor - The safer Craigslist for P2P ticket exchanges