In discussing the value (or not) of blogrolls recently, the suggestion was made that with ascendance of RSS the traditional blogroll is both not seen by regular readers and meaningless to the author as they worry about their current writing. On the other hand, it would be useful for new visitors to see something like a "current references" list if they want to see what is influencing my thinking.
So, is it possible to have a tool that automagically reviews the last X blog posts (or Y days of posts) and builds a list of baseline URL's to which I have referred? Essentially, run through all my text, grab the href's, and then be smart about collapsing multiple references to items at the same location.