What is a good tool to create a Website Architecture?

Question

We use Balsamiq Mockup to create our website wireframes. After we have that approved we switch to visio to create site architecture. Is there any other tools to record architecture and be able to post functionality later in the process.

I was looking into the following SO question, but we are looking for a tool that will allow us to save these functional requirements for other stages of the build process.

Answer 1

Have you had a look at Sketchflow?

Official MS page

Answer 2

Strongly recommend ForeUI, it supports switching wireframe fidelity and allow defining the behavior of each element. Finally, the interactive mockup can be run in web browser (as DHTML).