17. The computer-readable medium recited in claim 13, further comprising the step of linking each electronic document in the hypertext database to a present position of the user in the hypertext database by an intermediate, dynamically generated tree link.
17. The computer-readable medium recited in claim 13, further comprising the step of linking each electronic document in the hypertext database to a present position of the user in the hypertext database by an intermediate, dynamically generated tree link. 18. The computer-readable medium recited in claim 17, further comprising the step of generating each intermediate, dynamically generated tree link in accordance with relevance to the user of the document to which the tree link is linked and in accordance with efficiency of each index term to differentiate between relevant documents.