Howtoforge posted a guide about setting up a Feng Office Suite Web Server in Ubuntu Server 10.10
This howto describes how to set up a local intranet web based office suite server (on Ubuntu 10.10 server) based on Feng Office which used to be OpenGoo. Feng Office has a range of groupware type products such as word processing, email, calendar, and presentations.How To Set Up A Feng Office Suite Web Server On Ubuntu Server 10.10