Xmind - Xmind is a brainstorming and mind mapping application.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Splash - Anyone can create a Splash event, whether you're a company hosting a single event or an individual hosting a personal event like a birthday or wedding. Get Started for Free. Text goes here. X. Full Event Program.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.