About a half dozen private equity firms and companies are expected to submit bids for News Corp.'s Myspace by the end of this week, according to people familiar with the matter.

The companies considering a deal for the social media and entertainment site include private equity firm Thomas H. Lee Partners, Redscout Ventures and Criterion Capital Partners LLC, owner of social networking site Bebo, according to people familiar with the matter. Some firms are expected to team up on bids, a person familiar with the matter said.

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