FullCalendar - FullCalendar is an open-source JavaScript event calendar.
Doodle MeetMe - Your personal scheduling profile
FreeBu - Smart free/busy calendar sharing and meeting organizer.
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.
Letsfind - Letsfind is a fast, easy-to-use, ad-free way to create online (meeting) polls.
CozyCal - Online appointment scheduling