Ovidentia

Ovidentia is a portal generator allowing management of information, forums, diaries, FAQs, work flow, file sharing and a mail interface.

From the website:

Ovidentia.org is the official website of Ovidentia, an open source content management and collaborative platform written with PHP and using a MySQL database.

Ovidentia enables you to integrate simply and easily an environment for publishing content on the world wide web or a groupware portal (internet, intranet, extranet) for your company, organization, community ...

Looks reasonably classy and recently updated. Worth a visit.

Visit Ovidentia