Bracketology

It's March, and you know what that means: brackets. There are two ScienceBlogs brackets to keep your eye on:

• The barkers at the World's Fair have put together a Science Showdown -- bracket style -- broken into four regions: Octopus (life sciences), Mortar and Pestle (chemistry), Chair (philosophy and science studies), and Orbit (physics). Showdowns between competing disciplines will be decided, in part, by reader participation, and the winners will advance to face off with other disciplines. Go here to share your opinion on the opening round.

• A more traditional March bracket contest is being coordinated by Dave Munger from Cognitive Daily. A bunch of ScienceBloggers are participating in an NCAA basketball tournament pool; if you'd like to enter a bracket, email Dave for the password.