Technology Review: Special Reports: Social Computing

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: Annotating the Earth; Move over, Rand McNally: Google Earth is becoming the standard tool for organizing geographical information.

: Homo Conexus; A veteran technology commentator attempts to live entirely on Web 2.0 for two weeks.

: Surprising Search Patterns; A new study questions the common assumption that search engines control the hierarchy of the Internet.

: Scratch-and-Vote System Could Help Eliminate Election Fraud; A new lottery-style scratch card has been developed that might make elections less susceptible to rigging.

: Putting Pictures in Their Place; The popular photo-sharing website Flickr has made it easy to place pictures on a map--potentially changing Web search, travel, and local news.

: The $1 Million Netflix Challenge; The online supplier of DVDs wants to find a better system for recommending movies.

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Massachusetts Institute of Technology