Various types of backlinks are there including high PR domain backlinks that is .org and .edu backlinks and those are really worth more than regular .com or .net backlinks. Links from Edu & Gov Backlinks have most powerful authority and impact more for crawling your site for higher PR. Edu & Gov backlinks are particularly connected with educational & institutional related and intentionally working for government purposes. If you have a blog or a website and want to get high pagerank in Google then you need to try with these following .edu and .gov sites listed below
http://blogs.berkeley.edu/
http://statemuseum.arizona.edu/
http://blog.uwgb.edu/
http://gsc.mit.edu/blog/
http://blogpublic.lib.msu.edu/
http://www.dmu.edu/blog/
http://www.amcollege.edu/
http://aar.slu.edu/
http://abroadblogs.newpaltz.edu/
http://aceop.wvstateu.edu/
http://blog.admissions.cornell.edu/
http://admissions.fsu.edu/
http://admissions.ncsu.edu/
http://aearu.ntu.edu.tw/
http://ag.arizona.edu/
http://aipi.clas.asu.edu/
http://aiti.mit.edu/blog/
http://alg.umbc.edu/usaq/
http://alumni.brandeis.edu/
http://alumni.gsb.stanford.edu/
http://tomprofblog.mit.edu/
http://answer.rutgers.edu/blog/
http://antarctica.uab.edu/blog/
http://aphia.rso.siuc.edu/
http://appreciativeinquiry.case.edu/
http://apps.exploratorium.edu/
http://apps.pathology.jhu.edu/
http://archery.berkeley.edu/
http://architecture.tulane.edu/
http://asiahealthpolicy.stanford.edu/
http://asic.union.edu/
http://asunews.asu.edu/
http://www.rioredstorm.com/
http://atif-az.org/blog/
http://auroraforum.stanford.edu/
http://badgersabroad.wisc.edu/
http://ballroom.union.rpi.edu/
http://bases.stanford.edu/
http://bcnm.berkeley.edu/
http://beef.unl.edu/
http://biotech.law.lsu.edu/
http://blackout.gmu.edu/
http://blog.case.edu/
http://blog.dickinson.edu/
http://blog.discoveryeducation.com/
http://blog.law.cornell.edu/
http://blog.lib.umn.edu/
http://blog.lsc.edu/
http://blog.mycology.cornell.edu/
http://blog.oesd.wednet.edu/
http://blog.smu.edu/
http://blog.stanford.edu/
http://blog.twidox.com/
http://blog.usf.edu/
http://blogs.adelphi.edu/
http://blogs.bgsu.edu/
http://blogs.bu.edu/
http://blogs.cedarville.edu/
http://blogs.ei.columbia.edu/
http://blogs.jhu.edu/
http://blogs.law.harvard.edu/
http://blogs.law.yale.edu/
http://blogs.library.ucla.edu/
http://blogs.lynn.edu/
http://blogs.nyu.edu/
http://blogs.oregonstate.edu/
http://blogs.psu.edu/
http://blogs.psu.edu/blog/
http://blogs.qc.cuny.edu/
http://blogs.uprh.edu/
http://blogs.usyd.edu.au/
http://blogs.utexas.edu/
http://blogs.uww.edu/
http://blogs.vanderbilt.edu/
http://blogs.wesleyan.edu/
http://blogsforlearning.msu.edu/
http://boinc.berkeley.edu
http://boredshit.com/
http://bostonreview.mit.edu/
http://bostonreview.net/
http://bpa.odu.edu/
http://bschool.pepperdine.edu/
http://bschool.washington.edu/
http://buffy.infodiv.unimelb.edu.au/
http://bus.utk.edu/
http://business.fiu.edu/
http://byuracing.byu.edu/
http://ca.htc.mnscu.edu/
http://www-cyanosite.bio.purdue.edu/
http://www-personal.umich.edu/
http://www-rcf.usc.edu/
http://www-u.life.uiuc.edu/
http://www.accc.uic.edu/
http://www.accd.edu/
http://www.aces.uiuc.edu/
http://www.acesalumni.illinois.edu/
http://www.actlab.utexas.edu/
http://www.agbioforum.missouri.edu/
http://www.alliance.rice.edu/
http://www.alpstech.edu.ph/
http://www.alumnae.mtholyoke.edu/
http://www.alumni.appstate.edu/
http://www.amrita.edu/
http://www.anc.edu/
http://www.anderson.edu/
http://www.andrews.edu/
http://www.antiochla.edu/
http://www.apam.columbia.edu/
http://www.arl.psu.edu/
http://www.artcenter.edu/
http://www.brookings.edu/
http://blogs.oc.edu/
http://smude.edu.in/
http://blogs.fit.edu/
https://www.health.harvard.edu/
http://ncccblog.americorps.gov/
http://blog.nyiad.edu/
http://blogs.babson.edu/
http://jdunn.journalism.cuny.edu/
http://blog.westwood.edu/
http://ipep.arizona.edu/
http://blogs.oberlin.edu/
http://www.rasmussen.edu/
http://blogs.hanover.edu/
http://healthsciences.utah.edu/
http://blog.online.colostate.edu/
http://id.ome.ksu.edu/
https://open.umich.edu/
http://community.ashworthcollege.edu/
http://www.bi.edu/
http://tbirdonline.thunderbird.edu/
http://startup.nujs.edu/
http://blog.peirce.edu/
http://www.rowan.edu/
http://www.calmu.edu/
http://pty.vanderbilt.edu/
http://pasadena.paulmitchell.edu/
http://onlinelaw.wustl.edu/
http://msw.usc.edu/
http://onlinegrad.marygrove.edu/
http://onlinemba.unc.edu/
http://condor.depaul.edu/
http://www.independence.edu/
http://www.baystate.edu/
http://warner.edu/
http://info.princeinstitute.edu/
http://cps.regis.edu/
http://ui.asu.edu/
http://news.vanderbilt.edu/
http://blog.mountunion.edu/
http://blogs.broadviewuniversity.edu/
http://promo.unm.edu/
http://www.slu.edu/
http://www.rowan.edu/sem/admissions/
http://blog.antiochschool.edu/
http://www.aspen.edu/
http://info.waynesburg.edu/
http://blog.usaid.gov/
http://healthcare.utah.edu/
http://hub.jhu.edu/
ttp://infospace.ischool.syr.edu/
http://cw.ua.edu/
http://www.umsystem.edu/
http://blog.post.edu/
http://exec.tuck.dartmouth.edu/
http://bookhaven.stanford.edu/
http://blog.online.saintleo.edu/
http://www.wgu.edu/
http://ironline.american.edu/
http://forbes.house.gov/
http://blogs.cwsl.edu/
http://blog.methodistcollege.edu/
http://blogs.darden.virginia.edu/
http://www.academia.edu/
http://www.schoolrack.com/
http://www.futureofeducation.com/
http://www.community.eflclassroom.com/
http://oregonstate.edu/
http://www.uta.edu/
http://djclub.ucsd.edu/
http://forum.portal.edu.ro
http://forum.gov-zakupki.ru/
http://forum.loni.ucla.edu/
http://forum.portal.edu.ro/
http://forum.tcs.uj.edu.pl/
http://forums.saa.edu/
http://fsec.ucf.edu/
http://ftp.itcs.tsinghua.edu.cn/
http://green.chem.cmu.edu/
http://h2o.law.harvard.edu/
http://hlurb.gov.ph/forum/
http://home.khjh.hc.edu.tw/
http://hunstem.uhd.edu/
http://ilab.usc.edu/
http://ip.wsz.edu.pl/
http://ipv6bbs.zju.edu.cn/
http://itcs.tsinghua.edu.cn/
http://lc.hkbu.edu.hk/te/
http://leadingvoices.lipscomb.edu
http://linux.lses.tp.edu.tw/
http://lms.auaf.edu.af/
http://ltrc.tnc.edu.tw/
http://mydragonnet.hkis.edu.hk/
http://notable.math.ucdavis.edu/
http://og.cs.okstate.edu/
http://organizations.db.erau.edu/
http://pluto.potsdam.edu/
http://sbs.oeiizk.edu.pl/
http://school41.edu.ru/
http://sg.mededu.miami.edu/
http://stu.hksyu.edu
http://sweb.uky.edu/
http://thpt-trannguyenhan-hp.edu.vn/
http://tps.ccit.arizona.edu/
http://uct.edu.vn/
http://ufrb.edu.br/
http://upzmg.edu.mx/
http://wagnerpedia.wagner.edu/
