Barry Diller, chairman and chief executive officer of IAC/InterActiveCorp, said Web users will have to pay for what they watch and use, joining the refrain of media moguls who say an era of free Internet content is ending.

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“We have ample evidence both in traditional and new media that people are willing to pay for quality, to pay for choice and to pay for convenience,” Iger said. “And they are willing to pay for what they perceive as value.”