CManager - the optimal groupware extension for CCalendar:

• Person management for common, integrated management of your members / employees / customers / suppliers / ...by fully encrypted data storage in our database system!
• ToDo lists for common, integrated management of your tasks
• Mailing lists for integrated communication with your person groups by mail distribution up to 300 at once.
• In short: Media management for commuication and management of your available medias (CDs / DVDs / books / ...)