Is it Web 2 3.0? Is it just a jumble of Firefox extensions? Is it useful?

I’m not exactly sure. Still, the Hyperwords project is fascinating to me. It’s a Firefox extension that basically shortcuts a wide variety of search engines and other knowledge expansion tools. It also lets you work with the page or pages open in your browser in myriad ways. I have really only just started playing with it but have had some fun with it so far. See for yourself by watching the introductory video.

I can say that it dramatically reworks your context menu. This currently frustrates me but I’m willing to see if the frustration dissipates in the long term as the functionality proves its mettle.