Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Mevo by Livestream - The live event camera
TechEvents.co - Tech and startup events aggregator
Flutin Live - Flutin Live is an online live streaming platform for mobile and desktop browsers made for Windows.
Facebook Local - Discover places to go and events happening near you
onfour - A watch-together livestream concert platform