For those of you who are web developers or web designers, here is what: Balsamiq Mockups. Amazing product for quick and effective mock ups. From a super-simple dialog box to a full-fledged application, from a simple website to a Rich Internet Application. Here are some examples of what you can do with Mockups.
Balsamiq Studios LLC is a fresh little software company, runned by Giacomo Guilizzoni. Be sure to check his credentials on LinkedIn and his blog.
Follows a quick-and-dirty-3-minutes-low-budget-tutorial on YouTube:
