Check out Hyperwords. It’s a free Firefox plug-in that transforms anything you select into a hyperlink (see demo). You can then google it, pull up in-depth information or related content, translate it into the language of your choice, blog about it, and more.

Hyperwords is one of the next-generation tools that may change the way we browse the net. The Economist recently wrote about these, see Rummaging through the internet (June 5, 2008). Will it make the flow of information less overwhelming? Or more? Not sure yet.