Top 10 Social Bookmarking Sites List Reddit Twitter Pinterest Stumbleupon Weheartit Scoop.it Digg Slashdot Pocket Bizsugar List of Top Social Bookmarking Sites in 2020 Sr. No. Social Bookmarking Sites Alexa Rank 1 https://www.reddit.com/ 6 2 https://www.tumblr.com 56 3 https://www.pinterest.com/ 80 4 https://www.plurk.com 1,694 5 https://www.stumbleupon.com 1,927 6 http://www.scoop.it/ 3,088 7 https://flipboard.com/ 3,593 8 https://myspace.com/ 4,446 […]