Jira may be extremely sluggish and require a large amount of memory on the client side.
Backlog - A cloud-based project management app for developers and their teams.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Agilo for Scrum - Agilo for Scrum provides an intuitive workflow for your agile projects. Agilo addresses the needs of each scrum role and facilitates the ceremonies of the scrum process by exposing simple interfaces for managing the scrum artifacts.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
TaskBlast - Versatile and easy to use Project Management tool to get all team members involved.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.