Ironically I remember it bringing me to reddit a few times and I did not like it at all at the time haha. I just wanted to see more crazy websites and read the SU comments. It was always fun to find yourself on some website through some other means, and then checking to see if there was any comments about it on stumble upon and being pleasantly surprised when there was
newgrounds (The Impossible Quiz, anyone remember the square root of an onion?), Numa Numa, The Evolution of Dance, Shortbits 2, Badger Badger Badger (and other Weebl animations), Onyxia Wipe Animation, bash.org, Stumble Upon (a useful toolbar?!), all sorts of great stuff from that time