Top 50 High PR Social Bookmarking Sites List 2018 – Bookmarking Sites

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http://registertovotetoday.com/
http://www.usefulenglish.net/
http://www.airpim.biz/
http://www.blogengage.com/
https://slashdot.org/
http://digg.com/
http://list.ly/
http://www.sociopost.com/
http://www.metafilter.com/
https://www.mendeley.com/
http://www.linkarena.com/
https://foursquare.com/
https://www.google.com/bookmarks/
http://boingboing.net/
https://www.librarything.com/

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