The Science Tattoo Emporium continues to thrive, long after I first wondered aloud in August 2007 whether scientists had any cool tattoos of their research hidden under their lab coats. I continue to get photos at a regular rate, and as I post new ones, they continue to get noticed anew by places like Digg and Boing Boing. Initially, I was so stunned by the influx of photos that I posted just about anything that came my way. But as the emporium has grown, I've become choosier about which ones I post. So if you are considering sending in your own scientific ink, please read these guidelines: 1. I'm most interested in tatoos that tell a story. The most interesting stories are the ones about how people became scientists. I love this one, for example. 2. When you send in pictures, please include a paragraph in which you tell me who you are and explain the significance of the tattoo. I prefer people to tell the story of their tattoo in their own words. 3. If you've been so inspired by the emporium that you've dashed out and gotten a tattoo of your own, do NOT immediately take a picture and send it to me. I don't enjoy staring at raw, bruised flesh. Neither do readers of the Loom. Let yourself heal before grabbing the camera. 4. Make sure the photograph is well lit and at high resolution.