Ever won anything from Internet-based promos?

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I have! Won cash, cellular phone and a Palm Pilot (on different occasions) And for a former self-confessed Internet-based promo cynic like me, those winnings were definitely welcome surprises and yes, changed my opinion about these types of promos/contests. However, it doesn't mean that I don't think there are hoaxes out there, of course. What about you? Do share your experiences :)