Surf these sites: Citadel/UX -- BBS, interactive community, groupware GNA - Frontdesk -- a distributed group e-mail application for software/helpdesk functions. License is GPL GlobeCom Jukebox -- A group-enabled audio/jukebox application. License is in the BSD-style JetSpeed [from the Apache project] -- 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 TWIG -- a useful intranet/groupware tool and application framework. Written and implemented with PHP. Goal is to be a simple, cross-platform, fast way to access/share almost any kind of information. License is GPL onShore -- onShore, a consulting firm, has a web-based, multi-user time-billing tool. License is GPL
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