Hi! Came across this today and I love this site!! My g/f is Korean (I'm Chinese) and I've been trying to learn to make some traditional korean foods for her (cause I cook more often hehe). I know she LOVES that spicy raw crab dish and I noticed you mentioned you might put it up sometime but I wasn't sure if I missed it or something. I'd love to learn how to make that for her.
In Shanghai they also make something similar but not spicy, primary with salt and rice wine. There are a few variants and I love them all.