Another solution for making money on the Web comes from AT&T, which unveiled the PrePaid Web Cents Service. Disney Online and Speedway SuperAmerica are among the consumer companies using these prepaid cards to pay for Web services such as games. For example, cards for $14.95 or $24.95 can buy two- or six-month subscriptions to Shockwave.com Gameblast. Similar to prepaid phone cards, Web Cents cards are activated at the point of sale. When consumers go to participating websites, they enter the card's serial number and a personal ID number that's printed on the card, and fees are deducted from that card. The technique is designed for small purchases and for consumers who don't want to use credit cards on the Net.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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