Zoho Backstage - Plan, run, and analyze your event— all from one place
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.
List and Invite - Create an event, make a wishlist and share it with guests
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
PodKoi - Find podcasts to be interviewed on & guests to interview.
Meetup for iOS and Android - Discover groups that are all about the things you love