Seems that HTTP is usefull to retrieve documents. Thats nice, but can be interesting if http is expanded to retrieve links
BACKLINKS /homepage.htm that may return a collection of pages to link to this resource.
LINKS /page.htm that may return a collection of links of that resource
if some user follow a link on page.htm to homepage.htm, the server will check the suggested backling with a LINKS request, confirm and update the backling database for that resource.
the html sintax example can be:
<a href=""enormeousfile.dvd.iso"" method='backlinks">Mirrors for DVD iso</a>
the browser coder can render the result of the backlinks request as a popup menu to select (here) a download site
