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.

PHPRad - PHPRad is an advanced application development environment capable of generating complete applications in PHP using various databases. Great tool for professionals, the best tool for beginners. Little or No Coding Experience Required

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.

Instagantt - Instagantt is a powerful and intuitive Gantt chart tool to enable teams to plan, manage and visualize their projects easily. Manage your schedules, tasks, timelines, and workload like a Pro. Try it for free.

Basecamp - A simple and elegant project management system.

GanttPRO - GanttPRO is online Gantt chart software for project management. CEOs, project managers, and teams use it every day to solve project management challenges.