The Views module has a little-talked about default view that provides a way to display all internal content that links to a particular page. Think of it as an internal "trackback" (or "pingback") that you often see on blog sites.
For example, when exposed as a block, the "backlinks" view displays a list of all the other content on your site that links to the current node. The page view can also be used - the view accepts a node ID as an argument to filter which backlinks are displayed.
Upon installation of Views, the "backlinks" view is disabled by default on admin/build/views. Simply click the "Enable" link and display the block on the relevant node pages to take advantage of this handy feature.