I'm still waiting to hear the name of the 'startup' that had a wildly successful product and failed to make any money. The key of course will be the definition

I'm still waiting to hear the name of the 'startup' that had a wildly successful product and failed to make any money. The key of course will be the definition of "wildly successful". We could use twitter as an example. Is there any one on hackernews that believes twitter won't make any money when they finally decide on a revenue model? Anyone who is willing to say publicly that 37signals will be worth more as a business than twitter in 12 months? Just to be clear: if your product is very popular, finding a way to make money will not be difficult. You might not make a lot of money (but DHH says that's ok right?) and you might have to sustain a huge level of traffic to stay in business, but you won't go broke.