If you enter into that link, you will find all the links to the
White House, Thomas and C-Span, rather than one of the individual links.
Congratulations! You have successfully saved the web page (or document) in to your bookmark list!!
Bookmarking documents, doesn't usually work for ftp and sometimes not for gopher, however. It works best for web pages that have a title in the top right hand corner of the screen. Such as, 'U.S. Government Online'.