"Top Sites to get loyal fans:
Twitter: http://www.twitter.com
FaceBook: http://www.facebook.com
StumbleUpon: http://www.stumbleupon.com
Read Write Web: http://www.readwriteweb.com
Slash Dot: http://www.slashdot.org
Digg: http://www.digg.com
Reddit: http://www.reddit.com
Where's HN on this list?