Change the Constraint, Change the Guidelines
http://www.uidesign.net/Articles/Weblog/FeaturedBlogEntries/ChangetheConstraintChange.html

Anderson, David J.
UIdesign
2004

Abstract:

From a usability perspective are we letting inertia stop us from going and searching for the real new issues which constrain web sites from achieving their goal, or are we moving on, forgetting the last war, and actively out looking for that new constraint and seeking to write the new rules for a world where broadband is ubiquitous?