Micropayments, typified by the 99 cents that iTunes charges to download a song or the $2.99 users might see on their Cingular Wireless phone bills after buying a custom ring...

Micropayments, typified by the 99 cents that iTunes charges to download a song or the $2.99 users might see on their Cingular Wireless phone bills after buying a custom ring tone, are on a dramatic rise CNET reports.

Internet currency vendors of the dot-com era, companies including Beenz, Flooz and DigiCash, failed to generate enough business fostering micropayments to survive. Fast-forward a few years, and news that iTunes topped 125 million downloads last week is more evidence that digital content may hold the key to unlocking the low end of e-commerce.

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