Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Pivotal Tracker - Pivotal Tracker: The awesome, lightweight, agile project management tool for software teams. Get your 30-day Free Trial started today!
Roadmunk - Create beautiful product roadmaps quickly. Drag & Drop functionality. Export your roadmaps into formats such as: PPT, PNG & URL. Start for free today.
Redmine - Flexible project management web application
TargetProcess - Agile Project Management Web Application
Trac - Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.