Social Bookmark With High PR for SEO

Furl http://www.furl.net/ (PR 7)
Backflip http://www.backflip.com/dir_start.ihtml (PR 6)
Bibsonomy http://www.bibsonomy.org/ (PR 6)
LinkaGoGo http://www.linkagogo.com/ (PR 6)
Mister-Wong http://www.mister-wong.com/ (PR 6)
Raw Sugar http://www.rawsugar.com/ (PR 6)
Spurl http://www.spurl.net/ (PR 6)
Buddy Marks http://buddymarks.com/ (PR 5)
Jumptags http://www.jumptags.com/ (PR 5)
MylinkVault http://www.mylinkvault.com/ (PR 5)
oneview.de PR 7
folkd.com PR 7
jumptag.com PR 6
spurl.com PR 6
feedmaker.com PR 6
healthranker.com PR 5
myvmarks.com PR 5
diigo.com PR 5
buddymarks.com PR 5
ziki.com PR 5
mylinkvault.com
blinklist.com PR 5
spotback.com PR 5
linkagogo.com R 5
a1-webmarks.com PR 4
oyax.com PR 4
bookmarktracker.com PR 4
tedigo.net PR 3
mypip.com PR 3
yattle.com PR 3
memfrag.com PR 3
dizzco.com PR 2