Trello

Trello is a web-based project management solution, originally created by Fog Creek Software in 2011. It formed its own company in 2014 and has since been sold to Atlassian.
You can sign up for Trello here
Trello provides tools to define projects and their requirements, and includes a digital dashboard where you can create, organize and prioritize actions. The card system employed allows team members to interact and collaborate with each other on projects – users can add comments, links, fi