Robert Cringely writes:
That success couldn’t be simpler: FREE has a mystique that is hard to fight. That makes Craigslist Linux to eBay’s Windows.
Craigslist will always win when it comes to local classified advertising, simply because Craig and Jim’s operation is big enough and popular enough and cheap enough that nobody else will ever be able to catch up. Local classified advertising on the Internet is Craigslist’s opportunity to lose, not any other company’s opportunity to win, because it can’t be done.