Beer?! - A straightforward app to invite friends for a beer.

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

Make A Card - Design, customize, and send a custom invitation with a minimal look for your next virtual event.

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

Barly - A beer expert in your pocket

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.