Mark Pilgrim is happily hacking away on interesting uses for the HTML <link> tags a lot of bloggers have been putting up lately.

This time it's a weblog neighborhood script that uses the Google API to ask Google what the "related sites" are for your site, then checks those sites for a blogroll (or other list of links).

This shows you "what sites are those people running sites like mine reading?" Clear as mud? Well, check it out anyway, it's interesting. –)