Yep. Looks like the number at the end of the URL denotes where the user is being tracked from. There are several links that all function the same way: organizer.org/webby8.htm, organizer.org/webby2.htm, organizer.org/webby3.htm, organizer.org/webby4.htm, organizer.org/webby5.htm, organizer.org/webby6.htm etc

Ah yeah, I guess this would handle tracking of the original source if the link happened to spread.