Best Social TOP Bookmarking Sites?

Hi Friends
i need some social bookmarking website with high PR.

You can use the following:

Stumble upon
Tumblr
Pinterest
Diggo

You can find Free High PR Social Bookmarking sites at http://freehighprdofollowbookmarking...t.blogspot.in/

They are,
http://aaautorental1.com/
http://ak3.biz/user/kumari/history/
http://byggeord.com/
http://cahealthbenefitsexchange.com/
http://completeconnection.ca/
http://edwinaelaine1.newsvine.com/
http://elseopen.com/
http://honglande.com/
http://kisoko.com/
http://psvita.ca/
http://senneville-lands.com/
http://www.folkd.com/
http://www.iesa.co/
http://www.kaboodle.com/
http://www.pinterest.com/
http://www.qnasports.net/
http://www.reddit.com/
http://www.returntonovascotia.ca/
http://www.stumbleupon.com/
http://www.thewrongplan.ca/
https://app.blinklist.com/
https://delicious.com/
https://www.diigo.com/
https://www.google.com/

Some social bookmarking website with high PR :

http://bibsonomy.org
http://www.diigo.com
http://37warrenave.com/
http://aixindashi.org/
http://slashdot.org/
http://www.iesa.co

Reddit.
Twitter.
Pinterest.
Stumbleupon.
Weheartit.
Scoop.it.
Digg.
Slashdot.

https://www.reddit.com
https://slashdot.org/
https://slack.com/intl/en-in/
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https://www.google.co.in/bookmarks/
http://www.pearltrees.com
https://diigo.com
https://start.me
https://www.mendeley.com/
https://getpocket.com/a/queue/
http://www.folkd.com/
https://www.pinterest.com/
https://www.tumblr.com
https://mix.com/
https://slashdot.org/
https://flipboard.com/
http://www.livejournal.com/

Reddit.
Twitter.
Pinterest.
Stumbleupon.
Weheartit.
Scoop.it.
Digg.
Slashdot.

Popular social bookmarking websites
Twitter.
Pinterest.
StumbleUpon.
Dribble.
Pocket.
Digg.
Reddit.
Slashdot.