Web Calendar is a powerful group calendaring and
scheduling system. It is a Web based application
that makes it easy to publish and manage calendar
events on the internet. It includes an impressive
set of features, including an easy to use interface,
rich functionality, and sophisticated scheduling. It
is a CGI application. It runs under your Web server,
so to use it, all you need is a browser. There is no
proprietary software that needs to be installed on
the client side. Web Calendar runs under Unix and
Windows.