TaskCal Internet standards based human task management and process interaction. TaskCal is an iCalendar wrapper to the jBPM process manager, providing
standards based calendar agent access to an actors tasks via email (iMIP), HTTP
(.ics) and CalDav.
Mailer-Project is a free full-featured mail-exchange script (or so-called paid-mailer written in PHP4/5 which lets you easily setup a complete mail-promotion service including email and web templates, ticket system for your members, task management and many more.