Originally Posted by dwig
Read "As We May Think" by Vannemar Bush (attached) to see how old this idea is. BTW, Bush is the inventor of the concept of hyperlinked text and this is the original popular press article from the mid-40's where he discusses what are now Web Browsers, eBooks, and electronic reference materials with full text search.
I have this work as well, in a much cleaner HTML'ized version (care of our human eyes + conversion tools, with a nice pic of Vannevar Bush) in Plucker format. Screenshots are also attached, for the curious.