| Citadel/UX | | Unix implementation, a BBS method begun in 1981 with a CP/M-based BBS |
| DOE2000 Electronic Notebook | | Modular, extensible, notebook framework to make cross-platform interoperating prototype implementations. Allows shared input and display of sketches, text, equations, images, graphs, other data types. Tools for authentication, other services. |
| GNA - Frontdesk | | A distributed group e-mail application for software/helpdesk functions, GPL license. |
| GroupSuite | | A planned PHP-based groupware including calendar, address book, forum, ticket system, WebMail, CRM and DMS. |
| Groupware | | Summary of open source groupware software. |
| Hipergate | | Web-based open source groupware written in Java/JSP with support for PostgreSQL, Oracle and SQL Server. |
| JetSpeed [from Apache's Jakarta] | | A servlet implementation of an open protocol GroupWare product. Backend (search engines, news, weather, POP3/IMAP/LDAP/NNTP, database) is based on other open source packages. |
| Lucane | | Lucane is a free groupware platform written in Java, designed with extensibilty in mind. |
| MetaDot Open Source Portal Server | | Free Open Source Portal Server allowing point and click community, content and XML syndication management on the Web, email, cellphone, other media. |
| MoreGroupware | | Moregroupware is a Web-based Groupware written in PHP4. Includes modules like calendar, notes, todo, and contacts. It is database abstracted and uses a template engine for output. |
| Nexist | | Topic Map based java system, "a testbed for developing tools for Web collaboration", Apache license. |
| onShore | | onShore, a consulting firm, has a web-based, multi-user time-billing tool, GPL license. |
| OpenACS | | OpenACS (Open Architecture Community System) is an advanced toolkit for building scalable, community-oriented web applications. If you're thinking of building an enterprise-level web application, OpenACS is a solid, proven foundation that will give you a 3-6 month headstart. |
| Outreach Project Tool | | GPL PHP groupware package targeted at project development. Manages documents, tasks, requests, basic newsletters, knowledge entries, stores e-mail copies, e-mail repository address. Requires LAMP. |
| phpBB | | phpBB is an open source, flat style, message board written in PHP. It has all standard message board features. |
| phpGroupWare | | A multi-user web-based groupware suite written in PHP. It also provides an API for developing additional applications. |
| PHProjekt | | Open source groupware with calendar, project management, request tracker and 12 other modules. Supports more than 16 languages. Requires mysql, oracle, postgres or informix db. |
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