Framadate - Make your polls

Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."

Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.

Preceden - Preceden makes it easy to build simple, powerful timelines

Dudle - Dudle is an online scheduling application, which is free and open source.

liniaa - See all your precious memories at a glance.