Articles about project management
How to manage multiple IT projects
http://www.techrepublic.com/article/how-to-manage-multiple-it-projects/1061892
Open Source Project Management Tools
http://www.techrepublic.com/blog/project-management/free-project-collaboration-tools-that-rock/3912
Software
Project.net
Achievo
Cohuman
Commercial support offered.
Asana
Commercial support offered.
Trello
Commercial support offered.
2-Plan
Not so user friendly.