This is extremely cool and useful.
Ever printed out a web page, only to read the printout later and wish you knew what the hypertext you were seeing was actually linking to? Well, me too – and I decided to do something about it too – a bookmarklet that converts all text hyperlinks into footnotes, and lists out their URLs at the bottom of the page – nice, printable, and relies on good old numeric footnote matching (you do still read books with footnotes, right?).
Currently it only works on IE. If one of my legions of readers could create versions for Netscape and Safari, you’ll have my eternal thanks.