WeatherTunes - Weather based radio and music discovery
1up Events - Corporate events as a service
Babble - A more personalized social network
Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.
Sparq Events - 3D Social Networking
Event Hunt - Startups and Tech Events Curated By Locals