Abstract
The Internet is far from being perfect, and thus we are bound to see many remarkable changes in the near future. In examining what the Net can and cannot do today, what are the top six reasons to upgrade it? The Net is not sufficiently ubiquitous, reactive, proactive, information-driven, distribution-efficient and searchable. This chapter introduces these widely recognized issues, paving the way for the solutions presented in Chap. 4 and thereafter. © 2011 Springer Science+Business Media B.V.