I expect it's true that there will be a lot of people who resist getting online. First, it takes a computer and computers are confusing to a lot of people. Second, unlike TV and radio, the Web requires some initiative on the part of the user. One must seek information. Many people will simply not be interested in learning how and where to seek information on the Net.
Libraries are wonderful community resources yet many people never set foot in a library.
The Net is similar in many ways. The number of people on the Net will saturate and may do so well before we see full participation across the country. Those who criticize the Net as not being the same kind of mass market medium as TV are missing one of the most important aspects of the Net. It's not a mass market medium. In contrast, the Net excels at its ability to provide everyone with different content simultaneously.