Now used in 8, 500 U.S. shops, PhotoNet allows retailers to digitize conventional photos and store digital images on central servers so customers can access them via the Internet, edit them, electronically send the results worldwide or order prints, mugs and other paraphernalia.

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But "just browsing" has taken on a different meaning in the context of shoppers who go home and use their computers' browsers to find online retailers who will undercut the conventional stores.

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Online retailers, for example, are trying to move beyond what has become the conventional, rather static consumer experience.

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