The Open Lab is now open again, taking nominations for posts from October 2011 through October 2012. See Bora Zivkovic's note making the original announcement.
Also see the 'open lab 2013' link on the right. Feel free, of course, to nominate posts of mine. But, more importantly, I encourage you to nominate science posts you like, regardless of where from.
Your freezer is a battery of coldness
5 hours ago