Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.

Evendo - Events. Efficient. Easy.

SkillMint - Find, meet and rate people with common skills and interests. Community-driven rating system.

SurfersList - The ultimate online solution for finding, buying, and selling new and used surf equipment.