List of High PR sites for bookmarking :-
PR 9
http://slashdot.org
PR 8
http://reddit.com
http://www.technorati.com
http://del.icio.us
http://stumbleupon.com
http://digg.com
Social bookmarking is the practice of saving bookmarks to a public Web site and “tagging” them with keywords. Bookmarking, on the other hand, is the practice of saving the address of a Web site you wish to visit in the future on your computer. To create a collection of social bookmarks, you register with a social bookmarking site, which lets you store bookmarks, add tags of your choice, and designate individual bookmarks as public or private. Visitors to social bookmarking sites can search for resources by keyword, person, or popularity and see the public bookmarks, tags, and classification schemes that registered users have created and saved.
PR 7
http://www.bibsonomy.org
http://www.newsvine.com
http://www.nowpublic.com
http://www.linuxquestions.org
http://www.mister-wong.com
http://www.43things.com
http://www.squidoo.com
http://www.blogpulse.com
http://www.librarything.com
PR 6
http://www.feedmarker.com
http://www.blinkbits.com
http://www.clipmarks.com
http://unalog.com
http://www.indianpad.com
http://www.yoono.com
http://wists.com
http://segnalo.alice.it
http://www.linkagogo.com
http://www.rawsugar.com
http://www.kaboodle.com
http://linkfilter.net
http://tailrank.com
http://www.icerocket.com
http://de.lirio.us
http://www.simpy.com
http://www.backflip.com
http://www.clipfire.com
http://www.kinja.com
http://popurls.com
http://www.netvouz.com
http://www.spurl.net
Social Bookmarking opens the door to new ways of organizing Information and categorizing resources. The creator of a bookmark assigns tags to each resource, resulting in a user-directed, “amateur” method of classifying information. Because social Bookmarking services indicate who created each bookmark and Provide access to that person’s other bookmarked resources, Users can easily make social connections with other individuals Interested in just about any topic.
PR 5
http://www.shoutwire.com
http://tweako.com
http://www.givealink.org
http://www.wurldbook.com
http://www.beanrocket.com
http://www.listible.com
http://gibeo.net
PR 4
http://www.blogmarks.net
http://www.fark.com
http://www.bmaccess.net
http://ma.gnolia.com
http://www.beanrocket.com
http://www.mecanbe.com
PR 3
http://reader2.com
http://www.wazima.com
http://socialogs.com
http://www.rrove.com
http://www.plugim.com
Tagging information resources with keywords has the potential to change how we store and find information. It may become less important to know and remember where information was found and more important to know how to retrieve it using a framework created by and shared with peers and colleagues. Social bookmarking simplifies the distribution of reference lists, bibliographies, papers, and other resources among peers or students.
PR 2
http://dcgayetc.com
http://bagamare.ro
http://business-planet.net
http://www.craftcrave.net
http://br.mktfan.com
http://www.clicomics.com
http://www.eulinko.com
http://farhangreader.com
http://bookvote.net
http://demo.pacifichost.com
http://horse-topsite.com
http://kwzz.com
http://www.ideaspol.com
http://www.hotscripts.ro
http://www.kvadrati.net
http://www.doctorbookmarks.com
http://fuumanchu.com
http://findbetterlinks.com
http://52.co.nz
http://dumbemployed.com
http://entreprise-marketing.com
http://www.erupcija.com
http://link-to-results.com
http://www.dvdru.net
http://getofftheinternet.net
http://www.dynamicstips.com
http://freedomslips.com
Bookmarking dates back just a couple of years, when sites like Furl, Simpy, and del.icio.us began operating. Other social bookmarking sites include de.lirio.us, an open source version of del.icio.us, and citeulike, a social bookmarking site for academic papers. Social bookmarking is particularly useful when collecting a set of resources that are to be shared with others. Anyone can participate in social bookmarking.
http://digitalhumanities.nmdprojects.net
http://ma-petition.fr
http://cheap-airline-tickets-i.com
http://www.blognews.ch
http://blogro.info
http://blogy.superapple.cz
http://www.elclubdelanoticia.cl
http://haciendofotos.com
http://www.letsgetsocial.com
http://www.competitionhunter.com
http://confesen.com
http://lasvegaspridepets.lasvegaspride.org
http://www.hdrkid.com
http://www.designpoke.com
http://cloudtrip.com
http://blastandcastoutdoors.com
http://blogbookmark.com
http://colombianoscreativos.com
http://www.celebracy.com
http://101ako.com
http://www.cresset-travel.com
http://108digg.com
http://www.craftjuice.com
http://www.jobsdigg.com
http://indofeed.com
http://www.browsergame-gratis.de
http://guqin.tcfb.com
http://www.grownews.com
http://imenik.zapomni.si
http://www.justrage.com
http://kadindiyetuzmani.com
http://justdofollow.com
http://8biits.com
http://issoeoutrascoisas.com
http://www.linksstumble.com
http://juicyworm.com
http://www.bestofindya.com
http://www.gagica.zilei.ro
http://gajbice.com
http://www.dictio.es
http://www.linkspropeller.com
http://5×5.asia
http://www.lampurlink.com
http://animaleame.com
http://linkvai.com
http://173.254.16.88
http://www.lp-site.com
http://www.gainalink.com
http://bebeame.net
http://www.effortlinks.com
http://hitdigg.com
http://bookmarktou.com
http://www.bendasite.com
http://www.heliumbeta.com
http://berguedeja.net
http://www.galeriapublica.com
http://www.gathersocial.com
http://directorysky.com
http://dig.gr
http://funnysayings.us
http://futurismnews.com
http://bestsocialsubmission.com
http://l2y.com
http://chicago.getofftheinternet.net
http://linksplurk.com
http://americasreport.com
http://ajanlas.referenciamarketing.com
http://www.linksdigg.com
http://checkit.gr
http://www.content-free.de
http://aaigg.com
http://www.celeb9.in
http://kovaicity.com
My Favorite Top 10 Bookmarking Sites
http://blinklist.com
http://www.connotea.org
http://www.diigo.com
http://faves.com/SampleProfile.aspx
https://www.google.com/bookmarks/l
http://historio.us
http://www.instapaper.com
http://pinboard.in
http://zootool.com
If you are frustrated with the "Duplicate Link" error. Try following sites and enjoy:-
http://www.fashionablylatent.com
http://www.vodzone.com
http://www.liveonlinegame.com
http://www.neosi.com
http://www.bligg.be
http://www.bookmarkhome.net
http://www.bookmarkingonline.info
Please do comment and let me know your reviews. Is this blog useful for you or not and what problems are you facing while submitting your websites on Bookmarking sites. Any suggestions for me? Feel free to comment.
