Abstract: An web-based anonymous mutual-interest-based social introduction system allows registered users to anonymously express interest in a friends or acquaintances by specifying the e-mail address and/or mobile phone number of each person of interest. Interest is recorded in a database and if a person in whom interest was expressed independently expresses a mutual interest, both parties are notified. In a preferred embodiment, users expressing interest may choose to have enticing clues sent to the person of interest to encourage him or her to register with the system and anonymously express interest in friends and/or acquaintances. Unlike typical dating websites, the present invention is meant to facilitate dating between persons who have met but not yet disclosed attraction to one another.