Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Lemonade - Forget everything you know about insurance
Event Hunt - Startups and Tech Events Curated By Locals
Young Alfred - I do the insurance shopping for you
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Better - An iPhone app that blocks ads, tracking & malicious content