Similiciou.us

Enter a url at similicio.us and it will find similar sites for you. It answers the question, "people who tagged this site also tagged what other sites" - but only retrieves results from the delicio.us popular page, so results are limited. Works nicely though - I was looking for sites that recommend books on the basis of reader behavior (ie. similiar to Amazon's "people who bought this also bought that") and entered one such site, http://www.literature-map.com. Similicio.us returned whatshouldireadnext library thing, reader2.com and whichbook.net Similicio.us is a useful supplement to Google's "similar pages" feature.