Thumbstacks.com! Welcome to Thumbstacks.com, a new site for making and sharing presentations on the web. This site is just getting started, so if something's missing, or you can't find what you need, please let us know! We'll help out as best we can. What is it? With Thumbstacks.com, you can make presentations - like slideshows, or outlines - right in your web browser. When you're done, you can sh