OKCupid has done reasonably well for me--just spend enough time answering questions to get a good level of math & science stuff, and rate those as very importan

OKCupid has done reasonably well for me--just spend enough time answering questions to get a good level of math & science stuff, and rate those as very important or mandatory. The Harvard math majors who run the site don't know how to classify looks into "Me likey" or "me meh-y" yet; but they do have the personality profile done pretty well, in my experience.