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This seldom gets mentioned but the dirty little secret is that bandwidth for most ordinary web sites is controlled by how much the site wants to pay for it. Every webhost has a pay-per-gigabyte per second plan. Notice how even though you often can download large files from selected sources at speeds around 500 to 1000 kbytes/second for a typical cable connection (those sites who pay the likes of Akamai to handle such feeds) the actual loading of most sites is often limited to a couple of hundred kbytes per second at most. It gets worse for sites that are dynamically constructed, namely just about any media outlet, e.g. the New York Times, or anyone using a content management system, since the server has to build the page and then the web server has to send it out. That all takes a lot of horsepower and that's where the real bottlenecks are. On top of which sites with heavy advertising have to fetch that third party stuff and send it along too. Vast improvements in network delivery speed will really be felt for the those downloading huge files, or using streaming video from Akamai, et al.