Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Zoho Backstage - Plan, run, and analyze your event— all from one place
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.
Meetup for iOS and Android - Discover groups that are all about the things you love
Basecamp - A simple and elegant project management system.