At the time of the Yahoo acquisition, Geocities had focused on monetization and let scale grow on its own, making a few mistakes along the way in terms of figuring out monetization at scale.

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The first version of Sobig prompted infected computers to download Trojans that had been invisibly parked at Geocities, Yahoo's free Web-hosting service.

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Before that, the University of Illinois trained engineer worked for three years at GeoCities, before it was acquired by Yahoo in 1999.

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