Out of Egypt:

human-composed spam that's kinda fun to read

Apparently, one of the best ways to get high pagerank in Google is to have a page that demos WordPress themes. But once you have the pagerank what do you do with it?

Sell ads, mostly. Some people do it in a really blatant manner. Personally, I prefer the more distinctive approach of www [dot] wpdemo [dot] kaushalsheth [dot] com (dots added to protect my own page ranking, in case Google decides to penalize that site.) You've got to love the funny little stories in which the blogger hides his sponsored links.