There are several websites that host projects (a few of them host thousands of projects).
They allow people from around the world to collaborate on a project.
For each software project, they provide a CVS repository, a mailing list, and often a bug database, a screenshot portfolio, and a Wiki for the FAQ.
ProjXpert? ( http://www.ProjXpert.com/ ) hosts commercial, open source and shared source projects. It takes what works from open source development an provides it as a service( for a fee ) for non open source projects.
http://mozilla.org hosts 2 projects: the "Mozilla" project and the "Bugzilla" project.
What about AdvoGato and FreshMeat ?
2004-06-22: DavidCary created page ProjectHost.