Flickr - image and video hosting website
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Zoho Backstage - Plan, run, and analyze your event— all from one place
Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.
Meetup for iOS and Android - Discover groups that are all about the things you love