Ted Nelson links
Ted Nelson Hompage
Ted Nelson Discovered Hypertext
Ted Nelson demonstrates Xanadu Space (YouTube)
* For looking in those links, you might want to focus on what WWW is and Ted-Hypertext relationships.
By seeing what sorts of contents he is going for, you will easily find out how strongly his thoughts on the Internet influenced by Bush.
Doug Engelbart Institute
Doug Engelbart 1968 Demo
Douglas Engelbart : The Mother of All Demos (1/9) (YouTube)
* For looking in these links, you'll never fail to know that you need to focus on Doug-Demo relationships.
Plus, in the first link, you'll know what kind of ideas of Doug are passed down nowadays.