Fast tool for show and tell

Trying to describe what a web design will look like or what we're about to change with a layout is a challenge over the phone, especially with the limits of technical jargon. The best way to communicate tricky changes is to show them.

I know there are a million collaboration tools like WebEx and Genesys out there (heck, we even set people up with Unyte for webinars), but for a quick show-and-tell, I love Twiddla.