gre.gario.us is similar to my Speediest Gatherers script, only it doesn't take into account who posted links earliest (just who posted the same links as you). It also only analyses your most recent 25 posts, which is why it's acceptably benign enough to run as a service. Hopefully there'll be an official version of this kind of neighbour recommendations service on del.icio.us soon.
Comments
All fields are optional, email address will not be shown; no HTML, URLs are automatically hyperlinked.

Thanks for the mention. I really like your Gatherers idea; while it and gre.gario.us do similar things, it's interesting to see the differences between what the results actually mean. The real question is, do you want to find the real go-getters or the ones who simply have similar tastes? I think there's definitely a place for both.