When you look at the documents, particularly the one that lists the services available, you may either think 'could that be done then' or 'we can do that now'. Some things are still the same e.g. the NASA Headline news - but not with 'finger'. Remember also that you downloaded a file for off-line reading in a text editor from these various sources. To find out more information on the items mentioned in the document search Wikipedia e.g. finger protocol

• Their Letter
• list of books
• A list of modems
• Page one of explanatory booklet
• Page two of booklet