Top 20 High PR Bookmarking Sites list 2015 - Instant Approval

Here are the top 20 high PR bookmarking sites list 2015 with instant approval

https://delicious.com
http://www.plurk.com
http://slashdot.org
http://digg.com
http://stumbleupon.com
http://citeulike.org
http://mixx.com
http://technorati.com
http://www.explorebim.com
http://bibsonomy.org
http://squidoo.com
http://designfloat.com
http://fark.com
http://connotea.com
http://diigo.com
www.xmarks.com
www.bizsugar.com