Taiga.Io : Taiga is a project management platform for startups and agile developers & designers who want a simple, beautiful tool that makes work truly enjoyable...
Fun Retro : Easy to use and beautiful restrospective board.
ProjectPier.org : ProjectPier is a Free, Open-Source, PHP application for managing tasks, projects and teams through an intuitive web interface. It must be downloaded a...
Google App Engine : Google App Engine lets you run web applications on Google's infrastructure. App Engine applications are easy to build, easy to maintain, and easy to s...
Retrospectiva is an open source, web-based, project management and bug-tracking tool.
It is intended to assist the collaborative aspect of work carried out by software
development teams through the use of blogs, a wiki and tickets.