Contineo is a Web-based Document Management System (DMS). Features: Folder organization, document Versioning, Bulk import, import from mailbox. NOTE: this project has been DISMISSED in favor of LogicalDOC http://sourceforge.net/projects/logicaldoc
VTFileman is a web-based file manager designed for supporting multi-user web hosting environments. Apart from typical file management and editing features it includes a permission manager that creates access files compatible with the Apache syntax.
The DocWay Published Folder portlet allows you to easily embed Documentum content into your JSR-168 compatible portal. The portlet allows countless users to access files with only a single account. It can be extended to support additional data sources.