Dudle - Dudle is an online scheduling application, which is free and open source.
Framadate - Make your polls
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
WhenIsGood - Plan the time to have your meeting or event by co-ordinating availability with all the particpants using this fuss-free online tool.
Timely - Organise every aspect of your business: your staff, clients, sales, reporting, and more. Trusted with millions of appointments. Try Timely free.
Nuages - Nuages is a collaborative meeting poll system..