Xtreme community programming.

For some years now one of the hot topics in software development methodology is "exteme programming". Two of the ideas is something called "team programming". The idea is that two programmers share the same terminal. This helps reduce mistakes as the programmer who's not actively coding can catch "stupid" errors such as spelling mistakes or forgetting to initialize a pointer. Can a blog be used as an "extreme programming" tool? Perhaps by daily posting code and thoughts about that code others can help work out errors. If nothing else, this could be a neat way to provide running documentation of a project.