Prototipos de interaccion web con MS Visio

http://www.guuui.com/issues/02_07.php

Visio - the interaction designer's nail
gun (3rd edition)

How to use Visio for rapid prototyping - now with scrolling pages and sketchy interface widgets

This
is a third edition of my article on using Visio for rapid prototyping
for the web. The new edition includes a minor update of the GUUUI Web
Prototyping Tool that eliminates a major shortcoming: the inability to
create scrolling pages. The update also includes brand new sketchy
interface widgets.