GoFoldIt.com is an online tool that lets you easily create interactive 3d brochure demos either as digital proofs or as a way to communicate with clients. 

You can try out the tool with a pre-loaded instructional PDF here (http://gofoldit.com/demo)
Accounts can be created from the homepage (http://gofoldit.com/)
You can also check out a gallery of work shared by existing users (http://gofoldit.com/gallery)

This is a side project that I've been attempting to bootstrap by myself and I feel like it's finally in a state where I'm proud to share it with the world.

I'd love to hear any feedback or requests that you guys have.  I can be reach here on the forum, or via the contact form on the site, or feel free to email me at nate@gofoldit.com.

Thanks

Nate