Scrum is an agile method for Project Management mainly used on Software Development Projects. I heard about this method since last year but I only faced a great success case last week at Campus Party 2009. Yahoo! showed the way they use Scrum in their development project and the improvement enabled by this method.
Basically, the purpose of this method is to get everyone in the team involved with the project and aware of its status, so we can highlight the caractheristic of collaboration present in this agile practice.
I found this interisting video that explains the way Scrum works:
