I recently wrote about a great web site that offers an online diagram and chart design facility, which you can use for free. If you like such things, here's another system that offers similar facilities.
Cacoo (http://www.cacoo.com/) lets you create online charts, plans, diagrams and so on. The basic features are free to use, and you can also collaborate online with other users. It's a great way to draw anything from a table plan to a new web page design.
