We have gone through analog modems with speeds of 300, 1200, 2400, 9600, 14400, and 28800 bps. Only problem is that as the average speed of modems increase, the size of the content on the Internet goes up as well.
Integrated services digital network -- ISDN -- services are finally catchingup, which means you can access the Internet many times faster than you could using an average analog modem.
ISDN for Windows http://www.html-kit.com/e/go.cgi?i=X011798-MS-C