While AT&T, Comcast, and Verizon have argued — with incredible message discipline — that network neutrality is « a solution in search of a problem, » that’s simply not true.
There are many concrete examples of network neutrality violations around the world. These network neutrality violations include ISPs blocking websites and applications, ISPs discriminating in favor of some applications and against others, and ISPs charging arbitrary tolls on technology companies. […]
Even in the U.S., there have been some major violations by small and large ISPs. These include:
*The largest ISP, Comcast, secretly interfering with peer-to-peer technologies, including some of the most popular basic technologies used to distribute online TV and music (2005-2008);
*A small telephone ISP called Madison River blocking Vonage, a company providing competing telephone service online (2005);
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http://www.techdirt.com/articles/20140413/15112526896/yes-net-neutrality-is-solution-to-existing-problem.shtml