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Upper left: An animated dancing baby became popular on the Net before being featured on the television series "Ally McBeal."
Upper right: In 1999, Victoria's Secret hosted one of the first major Webcasts. It attracted so many, um, lingerie shoppers, Net servers crashed.
Lower right: AOL and Time Warner merged in 2000, but the union was largely seen as a disappointment. Pictured here is AOL's Steve Case giving Time Warner's Gerald Levin a hug.
Lower left: Viruses used to spread via disk, but e-mail is faster. The Melissa virus was noted for the speed with which it spread.
Credit: Yahoo, from its birthday retrospective