News Corp.'s MySpace social network launched on Thursday a service that scours the Web for news stories and lets users rate them, aiming to attract more advertisers to the Rupert Murdoch-controlled company. The service, called MySpace News, resembles a mix of Google's Google News, which collects stories and arranges them based on thematic similarities, and Digg.com, which displays stories suggested by its readers and displays them according to their popularity ranking, executives said.

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