My first site that I ever had with its OWN domain is www.3dgladiators.com
and I still have it, and still design and maintain it.
I use it as a test bed as well as using it for its main purpose: A place for CGI artists.
As a test bed, it gets the vB treatment before I apply certain things to other sites I work on, like here at DBCentral.
Many of the little goodies and such you see happening here, were done at my 3DG site first. Now... there are some differences...