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Upper left: Hotmail was the first free e-mail service, but Yahoo Mail came soon after.
Upper right: Yahoo's first TV ad featured a would-be fisherman searching the Web for bait advice. The ad introduced the company's yodel.
Lower right: My Yahoo debuted in 1996.
Lower left: The boom years gave rise to a host of ambitious but ill-fated projects, including Yahoo's print magazine.
Credit: Yahoo, from its birthday retrospective