Web Form Design: Filling in the Blanks by Luke Wroblewski Rosenfeld Media, 2008; version 1.0
Luckily, there are opportunities to provide a cleaner path to completion. Instead of a separate question to address the terms of service, the primary action can cover both the terms of service agreement and form completion (see Figures 6.15 and 6.16).
Figures 6.15 & 6.16 top image: http://www.flickr.com/photos/rosenfeldmedia/2366430793 bottom image: http://www.flickr.com/photos/rosenfeldmedia/2367266892
Two approaches for combining terms of service agreement and form completion into a single action.
Depending on the legal requirements of a site, the terms of service can be governed by a primary call to action that explicitly includes a legal agreement, for example, a button labeled “I agree and move forward” or one that infers it through text preceding the primary action “by clicking register below, I agree.”
157 Chapter 6 Actions Download at Boykma.Com