1st: The Accidental Tourist, happened in year 2001, after
September 11.
2nd: Sick Kid Needs Your Help, happened in year 1989.
3rd: Bill Gates Money Giveaway, happened in year 1997. Apparently,
it's half true, someone did receive the money.
4th: Five-cent email tax, in year 1999. OK, non-existant for
Singapore. Applies to US only.
5th: Nigerian 419 Scam, in year 2000. Need me to remind you?
6th: Kidney harvesting, in year 1996. With a chilling title +
story.
7th: You've got virus. Ever since the Internet days. And it's still
happening, people are still believing, which is why we have so many
PCs to clean. 
8th: Microsoft buys Firefox, last year. Who fell for my trick when
I posted it? 
9th: The really big kitty. No, not Hello Kitty, but a real cat. Not
tiger, not leopard, but cat. Happened in year 2001.
10th: $250 cookie recipe. Happened in year 1996.
Full article:
http://www.pcworld.com/article/id,131340-page,1-c,scamshoaxes/article.html