Thats a good suggestion, thanks!
ps - got any links to the digg examples?
http://mingle2.com/dating/phases
You can also see some of the other microsites towards the footer of that page. They all usually changed after they frontpaged to promote his dating site. Classic bait and switch.
Here's a recent interview with him about marketing: http://blog.mixergy.com/real-marketing/
The Inman interview you linked to is full of techniques for marketing that doesn't cost money, but it does cost time.
My suggestion is to pick just one of his techniques and focusing on that (quizzes, shocking content, for example).