High PR Do follow social bookimarking site list.

S.No.     Social bookmarking sites list

• 1. http://reddit.com
• 2. http://slashdot.org
• 3. http://stumbleupon.com
• 4. http://technorati.com
• 5. http://folkd.com
• 6. https://www.google.com/bookmarks
• 7. http://www.delicious.com
• 8. http://squidoo.com
• 9. http://www.pinterest.com
• 10. http://sitebar.org
• 11. http://digg.com
• 12. http://pinboard.in

PR 7 dofollow social bookmarking sites list

S.No.    PR 7 dofollow social bookmarking sites

• 1. http://diigo.com
• 2. http://metafilter.com
• 3. http://bibsonomy.org
• 4. http://newsvine.com
• 5. http://blinklist.com
• 6. http://current.com
• 7. http://www.mister-wong.com
• 8. http://www.mixx.com
• 9. http://multiply.com

PR 6 dofollow Social Bookmarking sites list

S.No.    Social Bookmarking sites

• 1. http://www.designfloat.com
• 2. http://www.linkagogo.com
• 3. http://www.dropjack.com
• 4. http://techspy.com
• 5. http://www.claimid.com
• 6. http://www.gather.com
• 7. http://sitebar.org
• 8. http://marketingland.com
• 9. http://www.dzone.com
• 10. http://bignet.biz
• 11. http://www.kwoff.com
• 12. http://www.jumptags.com
• 13. http://www.care2.com
• 14. http://www.plaxo.com/
• 15. http://www.dotnetkicks.com
• 16. http://bizsugar.com
• 17. http://www.propeller.com

PR 5 dofollow Social Bookmarking sites list

S.No.    Social Bookmarking sites

• 1. http://url.org
• 2. http://www.myusa.com
• 3. http://www.spurl.net
• 4. http://tipd.com
• 5. http://www.social-bookmarking.net
• 6. http://www.bookmerken.de
• 7. http://mybookmarks.com
• 8. http://www.stumpedia.com
• 9. http://inbound.org
• 10. http://givealink.org/main/show
• 11. http://www.digo.it
• 12. http://tipd.com
• 13. http://www.backflip.com
• 14. http://www.newsmeback.com
• 15. http://www.searchles.com

PR 4 dofollow Social Bookmarking sites list

S.No.    Social Bookmarking sites

• 1. http://bookmarktracker.com
• 2. http://murl.com/splash
• 3. http://www.colivia.de
• 4. http://www.a1-webmarks.com
• 5. http://buddymarks.com
• 6. http://voo2do.com
• 7. http://www.whitelinks.com/whitelinks
• 8. http://lilisto.com/home/
• 9. http://www.blogengage.com
• 10. http://www.bookmax.net
• 11. http://chipmark.com
• 12. http://buddymarks.com
• 13. http://efprof.net
• 14. http://www.easybm.com
• 15. http://ngopost.org

PR 3 dofollow Social Bookmarking sites list

S.No.    Social Bookmarking sites

• 1. http://www.blogreporter.biz
• 2. http://link-to-results.com
• 3. http://www.geimhost.com
• 4. http://www.bildu.net
• 5. http://bookmarks.sadiakomal.com
• 6. http://www.yemle.com
• 7. http://www.bookmark4you.com

PR 2 dofollow Social Bookmarking sites list

S.No.    Social Bookmarking sites

• 1. http://www.bookmark-favoriten.de
• 2. http://spider-robot.com
• 3. http://www.bookybookmarks.com
• 4. http://likeorhide.com
• 5. http://share.ae

PR 1 dofollow Social Bookmarking sites list

S.No.    Social Bookmarking sites

• 1. http://mettablog.com
• 2. http://www.clickets.de
• 3. http://boombao.info

how to use signeture on forum

সিগনেচার ফিল্ডে কি-ওয়ারডটিকে BB Code এর মাধ্যমে ঠিক এভাবে বসাবে , [url="http://yourdomain.com"] Your Keyword[/url], যেমন ধর, আপনার কি ওয়ার্ড হচ্ছে Super Online Earning Tips, তাহলে আপনার Signature এর জন্য BB Code টি হবে [url="http://internet.com"] Super Online Earning Tips [/url]
এভাবে আপনি যত গুলো কমেনটস করবে ঐ ফোরামে, তত গুলো ব্যাক-লিঙ্ক তৈরি হবে সাইটের।
forum list:

• http://forums.cnet.com

• http://internet.com/forum

• http://forums.cpanel.net

• http://forum.claroline.net

• https://forum.filezilla-project.org

• http://forums.hostgator.com

• http://www.bbpress.org

• http://www.chronicle.com

• http://www.careerbuilder.com

• http://www.ckeditor.com

• http://www.claroline.net

• http://flagcounter.boardhost.com

• http://www.gardenweb.com

• https://www.myspace.com

• http://pkp.sfu.ca/support/forum

• http://answers.microsoft.com

• http://online.wsj.com

• http://forum.joomla.org

• http://forum.siteground.com

• http://www.accessifyforum.com

• http://www.bookforum.com

• http://www.chronicle.com

• http://www.freewebsitetemplates.com

• http://www.mathforum.org

• http://www.000webhost.com

• http://kinder.univie.ac.at/forum

• http://forums.phpbb-fr.com

• http://forum.parallels.com

• http://forum.statcounter.com

Auto approve comment site with PR

•     PR7 — http://www.bicycling.com
•     PR7 — http://chamilo.org
•     PR7 — http://momsmiami.com
•     PR7 — http://www.hendrix.edu
•     PR6 — http://alaeditions.org
•     PR6 — http://connect4climate.org
•     PR6 — http://kalwnews.org
•     PR6 — http://kdenlive.org
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•     PR6 — http://alaeditions.org
•     PR6 — http://www.hopstudios.com
•     PR6 — http://loumalnatis.com
•     PR6 — http://onceuponaschool.org
•     PR6 — http://fyicanada.ca
•     PR5 — http://slidesix.com
•     PR5 — http://ezra-g.com/blog
•     PR5 — http://greenerpackage.com
•     PR5 — http://ecotonejournal.com
•     PR5 — http://inec.usip.org
•     PR5 — http://nutritionaloutlook.com
•     PR5 — http://livingplenty.com
•     PR5 — http://trainingmag.com
•     PR5 — http://mytech.it
•     PR4 — http://gettingoutside.com
•     PR4 — http://mduzyj.com
•     PR4 — http://indiandefencereview.com
•     PR4 — http://revistapenseleve.com.br
•     PR4 — http://ingenieroambiental.com
•     PR3 — http://americanbang.com
•     PR3 — http://afromanmusic.com
•     PR3 — http://blogpygmalion.com
•     PR3 — http://ypsilon2.com
•     PR2 — http://atmayogi.com
•     PR1 — http://alephnullplex.appspot.com