Co-Work:

is a collaborative workflow / task management system, at co-work.cc.
was written by Fred Kaudel and Tom Veatch to help them work together, like crazy!
converts work into a social process between partners and work groups.

The workflow is in the form of co-tasks. A co-task is:

not just a goal, an outcome specification,
but a history of documents and reports of progress.
like an email thread, but not designed to be ignored and obliviated
designed to make real progress.
carries and show what is needed to make the next step clear and easy to do.
Easy to create, define, split, merge, assign, complete.
Engages responsibility, responsiveness, and mutual support through visibility into each other's work, not just to make them responsible to you and you to them but to enable you to help each other.

Benefits:

Co-Work helps you be responsible and responsive to one another.
Have visibility into each other's work, not just to make them responsible to you and you to them but to enable you to help each other.
Turn your labors into a social interaction.
Be responsive, be explicit, help each other out, get things done together.
Spam is Absent: because users are verified.

So please Register and Log in, along with your mates, and start sending co-tasks to one another.