Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
Xmind - Xmind is a brainstorming and mind mapping application.
Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.