High pagerank profile linking sites
http://agblog.ok.gov/
http://ahc.ehawaii.gov/openedit/blog/
http://blog.aids.gov/
http://blog.citizen.apps.gov/yourvoicematters/
http://blog.epa.gov/blog/
http://blog.gallegly.house.gov/
http://blog.library.ca.gov/
http://blog.pittsburghsummit.gov/
http://blog.pittsburghsummit.gov/index.php/site/index/
http://blogs.loc.gov/
http://blogs.mo.gov/cybersecurity/
http://cce.nasa.gov/
http://change.gov/open_government/yourseatatthetable
http://clubs.db.erau.edu/dbslavic/forum-phpbb2/profile.php?mode=register&sid=dad0f304df1b2a94f20321fc0bb0e7ea
http://community.nicic.gov/user/CreateUser.aspx
http://community.portal.ca.gov/blog/join.aspx
http://community.sba.gov/user/register?destination=community
http://dcnr.nv.gov/
http://dgdc.blogs.delaware.gov/
http://djclub.ucsd.edu/forum
http://fdatransparencyblog.fda.gov/
http://forum.portal.edu.ro
http://forum.webcontent.gov/news/
http://gio.wi.gov/Home/tabid/94/ctl/Register/Default.aspx
http://gis.lacounty.gov/eGIS/
http://ideas.cio.ny.gov/
http://ksdt.ucsd.edu/forum
http://libraries.idaho.gov/blogs/anne-abrams
http://library.blogs.delaware.gov/
http://library.blogs.delaware.gov/2011/01/11/jacksonandsharp/
http://marsgeo.astro.cornell.edu/cgi-bin/ikonboard//register.cgi
http://media.csosa.gov/blog/
http://nnlm.gov/moodle/login/signup.php
http://oregonstate.edu/groups/osugaming/forums
http://passport.missouri.edu/index.php?option=com_user&task=register&Itemid=169
http://republicanleader.house.gov/blog/
http://roberts.senate.gov/public/index.cfm
http://skyview.gsfc.nasa.gov/blog/
http://swin.edu.au/hosting/hairhousewarehouse/forum
http://teens.drugabuse.gov/blog/
http://tokyo.usembassy.gov/zblog/e/zblog-emain.html
http://townhall.virginia.gov/L/Forums.cfm
http://weblog.sba.gov/blog-advo/
http://www.arts.gov/bigreadblog/
http://www.burton.house.gov/posts
http://www.calepa.ca.gov/Forums/registration_rules.asp?FID=0
http://www.connectcontest.state.gov/contests/change-your-climate-change-our-world
http://www.dent.ohio-state.edu/ce/boards/efda/index.php?action=register
http://www.dhs.gov/journal/leadership/
http://www.eereblogs.energy.gov/
http://www.geostor.arkansas.gov/G6/Home.html
http://www.kpl.gov/teens/blog/
http://www.majorityleader.gov/blog/blog.cfm
http://www.muskegon-mi.gov/videos-of-muskegon/
http://www.natcapwg.cap.gov/abovethecapital/
http://www.ncbi.nlm.nih.gov/pubmed
http://www.ncptt.nps.gov/
http://www.news.hs.utah.gov/
http://www.nlc.nebraska.gov/system/republican/
http://www.nysenate.gov/markup/
http://www.qub.buffalo.edu/forum/profile.php?mode=register&sid=4a54d8ebd3677d
http://www.rib.uscourts.gov/externalkb20/
http://www.tn.primrose.wi.gov/townsquare/member.php?action=register
http://www.tsa.gov/blog/
http://www.usrsaustralia.state.gov/blog/
http://www.volunteerlouisiana.gov/blog/
http://your.kingcounty.gov/votes/
https://blog.pnl.gov/so_what/
If you are feeling help for this directory list, so don't forget to COMMENT.