I remember using yahoo chat back in 1998, there was a link that kept appearing in the chat for "18.3MILLION USA DOLLARS" of unclaimed inheritance money a prince in Nigeria couldn't claim.
I thought it was really weird that a prince would have to resort to asking random people in a yahoo chat room to help him claim the money. Anyways, I clicked on the link and now I'm rich and retired, all thanks to yahoo and good Prince Tofil Bama.