I've been pushing for the adoption of scrum practices at last.fm of late (with some success!). Julian pointed our team to this Google Tech Talk from Ken Schwaber over at google video. It's a great talk - my personal highlight:

Scrum works with idiots... uniformly they will produce crap every increment... everyone knows where you are all the time...

For startups exiting the frenetic growth phase and trying to settle into an environment of sustainable software development, i can't recommend Scrum highly enough - it's used throughout Amazon, Google and Yahoo!, as well as smaller firms. Scrum comes from Schwaber and Sutherland, two advocates of the original agile manifesto.

I hadn't noticed that Google provide a range of ace tech talk videos, well worth browsing through.