I spoke at Velocity 2009 on Tuesday with my friend John Allspaw about how we work together at Flickr to make a lot of changes to the site without breaking it too often.
This is the third talk I've given with others around how to work together, but the first time I've tackled the ops/dev connection. It seems this relationship is easier to reflect on; it felt more natural giving direct advice in our talk instead of vague handwaving about designers and developers being nice to each other.
The slides are available as a PDF, or you can look at them on slideshare. A video of the session is up on blip.tv, and there's even a code.flickr.com post about the whole thing.