Hey,
we use Valleyspeak Project Sever http://www.valleyspeak.com this allows the team members to read the project schedule, and update the task status by an easy browser access.
Key Benefits
1. Provides 100% two way integration between Microsoft Project tasks and ValleySpeak Project Server
2. Provides comprehensive features like Timesheets, Issue Tracking, Risk Management, Document Management
3. Free and automatic upgrades so that you are always using the latest version of the ValleySpeak Project Server
4. Hassle free Pay as you grow model
5. No restriction of number of projects that one can manage through ValleySpeak Project Server
6. Option to migrate out with your data anytime, your data on resides on your desktop and is under your control at all times
7. Secure and Web Based with support for all major browsers for team members
We didn't have to download any software... It was easy to sign up and start using.
Best project management software which I have come across and happy working with it.