CalendarFly is the next generation free scheduling solution. CalendarFly is uniquely suited for school systems, sports teams, families, and any other organization because it automatically maintains and updates the schedules of teachers, administrators, coaches, parents, and students--making it easy for all of them to connect in real time and real places.
Introducing Plaxo 3.0, the only online address book and calendar that syncs with Microsoft, Google, Yahoo!, AOL, the Mac, Thunderbird, and your mobile phone!
CollectiveX is pioneering a new class of communications and social networking services designed explicitly for organized groups. It combines the best of group coordination and communication (a category currently occupied by Yahoo! Groups) with social netw
powerful and easy to use web-based calendar that runs on PHP and MySQL. A free version is available for use and is under constant development to improve its user interface and features.