The secret deals that make - and break - online video
Why YouTube buffers: The secret deals that make - and break - online video
Finally, a good article that explains it is as much business decisions as technology issues that make or break online video.
"...But cynical types who suspect their Internet Service Providers (ISPs) intentionally degrade streaming video may be right as well. No, your ISP (probably) isn't sniffing your traffic every time you click a YouTube or Netflix link, ready to throttle your bandwidth. But behind the scenes, in negotiations that almost never become public, the world's biggest Internet providers and video services argue over how much one network should pay to connect to another. When these negotiations fail, users suffer. In other words, bad video performance is often caused not just by technology problems but also by business decisions made by the companies that control the Internet.
"These business decisions involve "peering" agreements that Internet companies make to pass traffic from one to another and negotiations over caching services that store videos closer to people's homes so they can load faster in your browser. When Internet providers refuse to upgrade peering connections, traffic gets congested. When ISPs refuse to use the caching services offered by the likes of Google and Netflix, video has to travel farther across the Internet to get to its final destinationyour living room...."