Pivotal Tracker – Collaborative Lightweight Agile Project Management Tool
http://www.pivotaltracker.com/

Collaborative, lightweight agile project management tool, brought to you by the experts in agile software development with features including: a) Increase Visibility and Collaboration – Bring everyone, even distributed teams into the same virtual room. Enable a more efficient way to agree on priorities and stay aligned with the entire team; b) Plan Based on Realistic Estimates – Stay on target with Tracker’s continuous, automatic prediction of milestone completion dates, based on your team’s performance; c) Deliver on Customer Feedback – Get the right product to the market sooner, based on continuous feedback and prioritization. Respond to changing needs and new requirements easily; and d) Transform How You Build Software – Supercharge your agile project teams with focused, real time collaboration. Accelerate agile adoption with a simple, proven process. This will be added to the tools section of Research Resources Subject Tracer™ Information Blog.