Listing your business on web directories are part of SEO. All of listed web directories bellow are High PR websites and 100% free to use.

Submit your URL to the Top Search Engines

Google
Bing
Yandesk
Baidu

100+ Best Free Working Proxy site list

Get listed on 101 Free High PR Web Directories

http://www.yellowlinker.com/submit.php
http://www.a1webdirectory.org/submit
https://www.ezistreet.com/submit/
http://www.pakranks.com/submit.php
http://www.onewebdirectory.com/
http://www.thedailysubmit.com/submit.php
http://www.evolvingcritic.com/submit.php
http://www.thehillel.org/submit-url
http://wldirectory.com/submit.php
http://www.linkslive.info/suggest-listing.php?cid=0
http://www.worldwebwall.com/
http://www.prolinkdirectory.com/submit.php
https://www.directorystaff.com/submit.php
http://gosearchdirectory.com/submit
http://www.submit2ukdirectory.com/submit.php
http://www.tgp-internet.com/submit.php
http://caida.eu/submit.php
http://www.redlinker.com/submit.php
https://www.ayroo.com/submit-a-listing/
http://www.weboworld.com/free_form.php
http://www.ironlinkdirectory.com/submit
http://phplinkdir.com/submit
http://www.linkmatch.info/add-link/
http://www.hp-links.com/add-link/
http://www.enforum.net/submit.php
http://www.seodirectoryonline.org/SubmitLink/
http://www.usawebsitesdirectory.com/submit.php
http://www.allstatesusadirectory.com/submit.php
http://www.freedirectorysubmit.com/submit.php
http://1abc.org/submit.php
http://www.gmawebdirectory.com/submit.php
http://www.switchbookmarks.com/
https://www.dondir.com/submit.php
http://www.brownlinker.com/submit.php
http://www.britainbusinessdirectory.com/submit.php
http://www.jewana.com/submit.php
http://www.h-log.com/submit.php
http://www.eslovar.com/submit.php
https://thalesdirectory.com/submit/
http://usgeo.org/submit.php
http://textlinkdirectory.com/
http://thinkfla.com/submit.php
http://loadspy.com/submit.php
http://www.addbusiness.net/submit.php
http://www.dizila.com/submit
https://www.onemilliondirectory.com/submit
http://linkpedia.net/submit.php
http://www.net-dir.com/index.php/webmaster/chooseSiteType
http://www.bedwan.com/submit.php
https://www.intelseek.com/add_url_form.asp

100+ Free Internet Resources you should know 

http://abacusseo.com/submit.php
http://tele-script.com/submit.php
http://idahoindex.com/submit.php
http://ecctrade.com/submit.php
http://weddo.info/submit.php
http://zebralinks.com/submit.php
http://bobresources.com/submit.php
http://www.activesearchresults.com/addwebsite.php
http://www.exactseek.com/add.html
http://www.hotvsnot.com/Add-Site/Add-Site.aspx
http://www.entireweb.com/
https://www.linkcentre.com/addurl/
http://search.sonicrun.com/freelisting
https://viesearch.com/submit
https://www.somuch.com/submit-links/
http://www.sitepromotiondirectory.com/submit.php
http://www.submissionwebdirectory.com/submit.php
http://www.pegasusdirectory.com/submit.php
http://www.amfibi.com/add
http://www.1abc.org/submit.php
http://www.botid.org/Add-Site/Add-Site.aspx
http://www.infotiger.com/addurl.html
https://www.similarsites.com/addyourwebsite
https://anaximanderdirectory.com/submit/
http://www.sites-internationaux.com/anglophone/submit_link/add_url.php
http://www.itzalist.com/url-submission.html
http://www.allfreethings.com/submit.html
http://www.gainweb.org/submit.php
http://www.subjex.com/submit.html
http://www.illumirate.com/index.php?a=488310391
http://www.secretsearchenginelabs.com/add-url.php
http://www.elitesitesdirectory.com/
http://www.submission4u.com/submit.php
http://mastermoz.com/register.php
https://www.9sites.net/addurl.php
http://www.skaffe.com/
https://www.directory-free.com/submit/submit.php
https://www.millionshort.com/submit
http://www.amidalla.de/add.htm
http://www.gimpsy.com/gimpsy/searcher/suggest_compare.php
https://www.cipinet.com/suggest.php?action=addlink
http://www.abc-directory.com/
http://www.similarsitesearch.com/webmaster.html
https://www.skoobe.biz/
http://www.anoox.com/add_for_indexing_free.php
http://www.wotbox.com/addurl
http://stare-at.com/
http://www.uniquetitles.com/submit.php
http://ananar.com/submit.php
http://www.livepopular.com/submit.php
http://etaaps.org/submit

29 Free online ping sites list