Easynote

Completely free task manager where you can organise tasks easily and collaborate in a team. It has some great features including message boards, file sharing and reminders.

Easynote keeps it's users and simplicity at it's core. As a result you get simple and intuitive layout and controls. It is as useful for a shopping lists as it is for a multi-user project. You can easily add users, delegate tasks and set clear deadlines with reminders. Users are able to filter their tasks and see what they need to every day in both list and calendar views. You can also give updates on tasks through message boards as well as update their status.

Easynote was created by project managers for project managers and is constantly updating its functionality. They have an approachable team who always answers questions and make custom versions for many companies who choose to load in on their own servers for internal use.