Lately I've been helping out a web development team at BYU develop a new calendaring system in Drupal to replace our existing all-in-one calendar. It's an ambitious project that's leveraging quite a few different modules from the Drupalsphere.

Some of the features include:

• Import ical feeds.
• Filter events for display by event category
• Download customized ical feeds by category (i.e. Student wants to import just sport and academic events into his personal calendar).