Here's a complete list of High PR or HIGH Domain & Page authority sites. Having good Moz trust. Make sure don't make too many links from these websites. Keep your bookmarks publicly to gain good ranking as well as good Back links.
http://www.reddit.com/
https://delicious.com
http://tagza.com/
http://www.thinmarker.com/
http://www.fundolink.com/
https://www.diigo.com
https://app.blinklist.com
http://www.humsurfer.com/
http://www.folkd.com
http://buddymarks.com
http://www.hotklix.com
http://www.bibsonomy.org/
http://www.bizsugar.com/
http://www.digg-digg.com/
http://www.newsmeback.com
http://www.bestofindya.com
http://www.openfaves.com
http://www.sociopost.com
http://www.a1-webmarks.com
http://www.sonico.com
http://register.rediff.com/
http://register.rediff.com
http://www.kannikar.com
http://fwisp.com/
http://www.givealink.org
http://www.siliconindia.com
http://markurls.com/?nr=0
http://www.jeqq.com/
http://www.kwoff.com
https://secure.newsvine.com
http://www.designfloat.com
http://www.startaid.com
http://www.dekut.com
http://www.fashionablylatent.com
http://www.urselections.com/
http://soforce.com
http://pearlbloggers.com
http://www.stumpedia.com/
http://enexpress.net
http://www.qiel.com/
http://www.fashionfeeder.com/
http://www.sitejot.com
http://diggit.in/
http://www.dekut.com
http://www.bookmarkitnow.com
http://www.bookmarkscape.com
http://www.fashionfeeder.com/
http://bookmarksphere.com/
http://webpur.com
http://kavitachahar.com
