Sometimes technology disappoints. Here are some of the products, services and companies that let us down in 2012.
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After two years on life support, Apple's musically-oriented social network was mercifully put down in September. Pitched as a cool way to uncover new music in iTunes, the service never caught on and languished in social net limbo. During its brief life -- the service debuted as part of iTunes 10 -- Ping lacked Facebook integration, a key factor limiting its appeal, and had some nasty trouble with spam and scams. When it silenced Ping, Apple added Facebook and Twitter integration to iTunes, a wise move that's bound to draw the social music crowd that Ping failed to attract.