TechEvents.co - Tech and startup events aggregator
Airbnb - Book unique places to stay and things to do.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Sporteventus for iOS - The worldwide search engine for sporting events and tickets
All Design Conferences - A list of all front-end and design conferences
Up All Night - Concerts and exclusive events for $25 a month