From ActiveWord Systems:
ActiveWords is user interface technology that makes all words active. Enter or select any text in any context at any time, and be directly transported to services related to the meaning of that text. Make a small investment in tagging all the things you do with words that mean something to you. Then, simply trigger those words, your ActiveWords, to instantly get what you want. ActiveWords Plus now includes the AWInkPad, leveraging the power of your 20,000-word vocabulary to both keyboard and ink on a Tablet PC. ActiveWords delivers instant access to your favorite Web sites, files, folders, and programs. Just enter a word or select any words on your computer, press the ActiveWord key and you are there.