Flutterby™! :

Jakob Nielsen gets it, with Differences Between Print Design and Web Design:

Print design is 2-dimensional, with much attention paid to layout. It is obviously possible for the reader to turn the page, but substantial interplay between different spreads is rare. Typically, each view is a design unit created for a fixed size canvas - often a big canvas when designing newspapers or posters.

In contrast, Web design is simultaneously 1-dimensional and N-dimensional.