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'Virtual Currencies' Power Social Networks Wednesday, May 20, 2009 - Anuradha Menon Home >> Headlines >> Internet   
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When Santiago Martinez wants to give his friends birthday presents, he buys a cake or flowers or sometimes a teddy bear. But the 41-year-old, who lives on Mexico's Yucatan Peninsula, doesn't spend pesos or dollars. He buys the gifts with an online-only currency called hi5 Coins. He also doesn't deliver the gifts in the physical world. They appear digitally on his friends' online profiles on a site called hi5, which is a social network like Facebook or MySpace. (source: edition.cnn.com)
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