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While Comcast has been trying to curtail file sharing, Verizon has taken a hands-off approach. Why? It's not because Verizon executives are free-the-Internet libertarian nutjobs. No, it's because file sharing can make them more money. The phone company partnered with peer-to-peer software startup Pando Networks to speed video downloads. When DSL customers share files with others on Verizon's network, it cuts costs 75 to 90 percent and dramatically reduces the load on Verizon's network. Before you hold up this capitalist move as an argument for network neutrality, consider this: Verizon had to share data about its network with Pando to optimize delivery of the video files. (Photo by /Mark Lennihan)