We spend a lot of time scouring the web for resources to assist us in improving our business. With the number of web application prototypes we have been working on lately, we think the following resources can be as valuable to you as they have been to us.

Smashing Magazine - Design Better & Faster with Rapid Prototyping

Adaptive Path - Spreadsheet of Rapid Prototyping Tools

Venture Hacks - What is the Minimum Viable Product

Venture Hacks - 10 Examples of Minimum Viable Products

OnStartups - From Minimally Viable to Maximally Buyable Product