The Power of Prototyping

Prototyping has been used through out history to create meaningful products for specific needs. The producers and inventors of the world will fail and fail again in order to reach that optimal user goals.
Prototyping is great in product development because it saves time rather than designing and developing a defective experience that is uncomfortable to use and hard to navigate, you can
develop low level/low fidelity wireframes in to weed out the good behaviors from the bad.

Recently this article was posted on Boxes and Arrows, it discusses the value of prototyping with HTML and some of the comments were helpful. Such as using dreamweaver to rapid prototype.
http://www.boxesandarrows.com/view/prototyping-with