NeoBoard
NeoBoard is a Zope product that helps you create web based threaded message boards. The older version of NeoBoard was coded in PHP with MySQL. NeoBoard is reborn as a Zope product. Features: Structured Text support with rendered content caching; Collapsable threads; File attachments with automatic mime type recognition; Automatic image displaying/thumbnailing if Python Image Libary module present; Thread-wide auto mailer; Board Management delegation; Self-upgrading object instances when class definitions change; Batch action support: articles can be deleted/moved to another board in a batch.