7 worst tech mergers and acquisitions

News Corp. (NWSA) and Myspace

The potential: In 2005 when Rupert Murdoch's News Corp. bought MySpace owner Intermix Media for $580 million it seemed like a great idea. MySpace was a hot social media site that could drive traffic to all the sites in Murdoch's media empire.

Why it failed: Facebook happened. But Myspace didn't help itself. It stopped innovating once it became just another property in the Murdoch domain. Meanwhile, Facebook exploded as the only social media site that mattered. This year, News Corp. sold off Myspace for just $35 million to ad company Specific Media.