Here are some sites from where you can get about 50000 free backlinks

 

To bring your website on top its very important to have backlinks and dofollow backlinks are the ones that help you the most

say suppose if you have 1million backlinks that means you have tons of traffic coming to your site from those backlinks and 

your site will improve all the rankings.Here are some sites I found that can get you about 50000 free backlinks each one of the site generates about 15000 backlinks itself.Rapid Indexer submits your URLs to various statistic sites. These sites give a value of your URLs and also provide a free link back to your site. Our rapid indexer sends your URLs to over 15,000 sites which gives you that many one way backlinks and Rapidly gets your URLs indexed by Google! 

 

http://www.indexkings.com

http://real-backlinks.com/en

http://www.get-free-backlinks.com

http://www.imtalk.org/cmps_index.php?pageid=IMT-Website-Submitter

http://pingbomb.com