Joyent Senior Vice President of Engineering Bryan Cantrill was at the FISL 2012 conference in Brazil last week and used this opportunity to offer his experience with corporate open source "anti-patterns." He offers us the valuable lesson of what not to do, so we can move forward by making new mistakes together instead of repeating history. You can also see Brendan Gregg's slides from his talk on Performance Analysis: The USE Method at Slideshare, and Deirdre Straughan's talk on Using Video to Communicate Technology. For more from our kernel team, check out the SmartOS blog.