This bookmarklet tool shows incoming links that are not reciprocated. For instance, some users have links to their favorite films. If you look at the film's topic you will not see the user's link because the film topic doesn't have a reciprocal property for a users's favorite films. For example, navigate to the film Repo Man then use the javascript bookmarklet to see a list of users who linked to the Repo Man.
To use the tool, copy the weblink titled, Incoming Bookmarklet to your list of browser bookmarks. I can't seem to add the bookmarklet as a weblink on this page so I'll provide the link at www.tigerlight.com/mjt/incoming.html. The bookmark looks like this:
javascript:(function(){window.location="http://www.tigerlight.com/mjt/incoming.html?url="+window.location;})();
The tool can also be used by entering a topic id on the incoming.html url line. For example, www.tigerlight.com/mjt/incoming.html?id=/topic/en/repo_man.
Applications can be built to make more use of incoming links. For instance, a bookmarking tool would allow linking to topics from webpage objects. Topics don't currently show links from webpages.
Another application could use incoming links as a way to let users recommend topics. An app could let users link from their write-protected user object to any other topic. So users could link to their favorite anything (films, restaurants, wines). When you look at a topic you can check to see if any users selected it as a favorite.
