Any website owner is probably familiar with this one. Checking your Search Engine Referral logs for the wild and wacky searches people are performing that enables them to land on your site. Here's a couple of doozies from the last week...
Query: where can I buy condoms in shanghai?
Result: Post about the condoms for underwater sound recording in the Yangtze River
Query: Hugh is the only person I know who doesn't talk bollocks.
Result: Post about the Stephen Fry webchat at the Douglas Adams Continuum