An anonymous reader writes "ZDNet has an article talking about worries over the increase in video downloads in the last year. Free video hosting and the popularity of iTunes is blamed for this phenomenon."
From the article: "This is far from an academic issue. Whether the new companies can deliver on their promises could have a profound effect on how the Internet operates--and it could hit consumers in the pocketbook. Business and entertainment content worth billions of dollars now flows over ordinary ISP networks. Internet voice calls, which can be garbled by any network congestion, are increasingly common. Serious online hiccups could be as irritating, and potentially economically damaging, as persistent L.A. traffic jams."