Hi.
I'm a grad student studying social psychology, more or less in the heuristics & biases tradition. I've been loosely following the blog for maybe six months or so. The discussions are always thought provoking and frequently amusing. I hope to participate more in the near future.
Some research says that lurkers make up over 90% of online groups. I suspect that Less Wrong has an even higher percentage of lurkers than other online communities.
Please post a comment in this thread saying "Hi." You can say more if you want, but just posting "Hi" is good for a guaranteed free point of karma.
Also see the introduction thread.