Document management

Liferay CMS - Liferay
Liferay has customized “portlets” that each user can add. You can have financial tools, news, weather and RSS feeds. You can collaborate with internal blogs, message boards and wiki’s. Document Management has
check-in, checkout, and versioning. Open Source

MS Project Replacement

OpenProj | Serena Open Source and Hosted Project Management Software

OpenProj is a replacement of Microsoft Project and other commercial project solutions.