This Post Title was taken from:
http://www.web-directories.ws/Press/Social_Media/Social_Bookmarking/
Yes, you can find 450 Social Bookmarking Sites in that link. Just copy the link to your browser.
You can choose the links by Page Rank, hits, alphabetical or date added. The URLs, IP addresses are included also. Really a great work from Web Dirctories.
Here are the sample lists Short by Page rank:
fark.com http://fark.com •IP : 207.246.126.10
mister-wong.com http://mister-wong.com • IP: 88.80.205.112
yahoo.com http://buzz.yahoo.com • IP: 66.196.81.202
digg.com http://digg.com • IP: 64.191.203.30
reddit.com http://reddit.com • IP: 96.17.104.25
stumbleupon.com http://stumbleupon.com • IP: 74.201.117.232
newsvine.com http://newsvine.com • IP: 207.46.141.138
connotea.org http://connotea.org • IP: 199.168.13.252
mixx.com http://mixx.com • IP: 174.143.181.117
citeulike.org http://citeulike.org • IP: 93.93.131.33
google.com http://google.com/bookmarks
delicious.com http://delicious.com • IP: 98.139.50.166
blinklist.com http://blinklist.com • IP: 174.129.4.145
del.icio.us http://del.icio.us • IP: 76.13.6.175
