The new YouTube craze, the Harlem Shake, has hit the lab rooms. Watch this group of students at Northwestern University do their own version of the Harlem Shake in the lab room.
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David Callejas, Marketing Director, helps bring EarthSky's content to the world via online ads and other products. He creates strategies that help people around the world find us and appreciate the work we do. He helps manage the EarthSky Store and bring to you the new products that you love. He's the chief liaison between EarthSky.org and the world of commerce. All that, plus he helps post content and populate our pages on Facebook, Google+ and Twitter. Go David!