Lurker is a mailing list archiver designed for capacity, speed, simplicity, and configurability in that order. Noteworthy features include: google-style searching on all fields, chronology preserving threads, multilingual, and attachment support.
Quosis Platform is an communication and information management platform for distributed enviroments and collaboration beyond organizational borders.
Yet Another Emotion Diary (YAED) is a tool to keep track of personal daily emotions and feelings. ED has tools to analyze and create statistics about feelings. NO psychology needed from the user. =)