Dofollow is the thing that Google consider before ranking a website. So many people try to get dofollow backlinks, they spend money for it; they hire people for it because they do not know how to get dofollow backlinks. But it is easy to get, only they have to find out some of the dofollow social bookmarking sites. And submit their links there; this is the easiest and the best way to get dofollow backlinks. There are not so many dofollow social bookmarking sites but I have found over 100. All of these sites are not so useful and do not have a page rank so I have selected only about 50 sites for this post. I have checked all these links manually and all the sites are working and are 100% dofollow social bookmarking sites.

http://www.180blognetwork.com/
http://www.propeller.com/
http://www.agroots.com/
http://www.bestofindya.com/news/
http://www.bloghop.com/
http://www.blurpalicious.com/
http://www.bookmark24.eu/
http://www.bringr.com/
http://www.bukmark.net/
http://www.buzzup.com/us/
http://www.cadillactight.net/
http://www.care2.com/
http://www.ciudadlaberinto.info/
http://www.connotea.org/
http://www.corank.com/
http://www.designfloat.com/
http://www.digg.com/
http://www.diggdirect.com/
http://www.dizzed.com/
http://www.dofollowdigg.com/
http://www.dzone.com/
http://www.ebaumsworld.com/
http://www.fcc.com/
http://www.feedmarker.com/
http://www.folkd.com/
http://www.folkds.info/
http://www.gozoof.com/
http://www.haohaoreport.com/
http://www.humsurfer.com/
http://www.i89.us/
http://www.iliketotallyloveit.com/
http://www.indianpad.com/
http://www.japansoc.com/
http://www.kabulis.com/
http://www.kwoff.com/
http://www.memfrag.com/
http://www.metafilter.com/
http://www.mixx.com/
http://www.mylinkvault.com/
http://www.mypip.com/index.html
http://www.mysitevote.com/
http://www.neosibookmark.info/
http://www.newdigg.info/
http://www.newdofollowdugg.info/
http://www.newscola.com/
http://www.newwinecc.org/
http://www.oldrec.com/
http://www.oopza.com/
http://www.openbookmarking.info/