Go to <A href="http://www.alltheweb.com"target="_new">www.alltheweb.com and try a query like "<A href="http://www.alltheweb.com/search?cat=web&cs=iso-8859-1&q=url%3A+postnuke.com&_sb_lang=fr+en"target="_new">url: postnuke.com" (or click the link). You'll get a long list of links; scroll down to a link that looks something like this one "<font color="green">more hits from: http://news.postnuke.com/modules.php?...</font>" and click it. Wait for the page to load and check out the address bar. It's a full Postnuke url in all its ugly multiparameter glory.
I don't know if this is news to anyone but me, but I haven't seen it mentioned anywhere. As it could be so potentially useful to *nuke users (not just PN users), it might be worth everyone's time to try to drive a little traffic towards www.alltheweb.com, or alternately, to lobby Google to get it together when it comes to those looong urls of ours.