To find someone who would be a great fit, I made the website expressive of my personality. I figured that if someone looked at the site, had a good idea of who I was, and still wanted to live with me, we would probably get along well. To make it a bit more fun, the site incorporated several interactive elements, including an "Am I a good fit?" checklist with customized responses, icons which revealed facts about me on hover, and an interactive photo grid. After completing the project, I emailed it to my future coworkers (also upcoming college grads) who would be starting at the same time and posted a link in the Facebook page for my graduating class. I received my first response shortly after publicizing the site and the two of us have been living together for a year now!
See the live project here.