Use of the NII is, of course, a matter of individual choice. Although many factors affect who chooses to use what technology, when, where, how, and how well, contemporary experience shows that many people seem to want to use infrastructure technologies. Further, economists have shown that individuals benefit from widespread use of network technologies, suggesting that enabling use by more of the population will benefit more than just those newly accommodated. Broader deployment, if not ubiquity, and broader use allow for the economic and social benefits of what economists call network externalities-individuals gain value and appreciate networked systems more as more people become connected users. Even if advocacy based on the social or societal value of enhanced information infrastructures is premature, as some skeptics argue, the evidence for the promise of the technologies is great enough to make continued efforts to improve interfaces a wise national investment.