gloor on tour. talking about his work should include the question of data retention, imho, as it's all about tracking. anyhow, he has learned something from his project cybermap. and sometimes he tells the story, that he gave tim berners lee a spot to present his paper at the hypertext and hypermedia 1991 as it was not accepted ... (need to find this audio snippet)

and btw in regard to hypertext and hyperlink models and ideas: james mayfield's paper Two{Level Models of Hypertext is worth a look. in there also snitch, semantic net (1993)