Time trading is a means by which developer resources get allocated to open source software development tasks. It allows isolated developers to make significant enhancements to software projects with very little effort and no long term commitment.
The original time trading article presents junior-senior time trading through a motivating example.
Grovelling is a method in which a developer who needs help promises his own time in the form of grunt work to any developer who can solve the his problem.
A flexible solution finding and bidding forum is being planned.