Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
HeadReach - The fastest way to find targeted leads with real emails and social profiles
TechEvents.co - Tech and startup events aggregator
LinkedIn Organic - How to acquire customers through organic LinkedIn content.
Facebook Local - Discover places to go and events happening near you
Toby for LinkedIn - Save yourself needless clicks and your precious time & See company info without exiting the profile pageSimple as that