If you want to increase your ranking on a competing keyword, you need to create a healthy backlink tree. However, you should never purchase a back link or submit to directories full of low-quality sites. The first question that comes to a beginning SEO professional is,'' Where can I find back links?'' Our SEO Experts knows very well that how to gain quality backlinks from high PR sites. They are using various SEO technique like social bookmarking, classifieds postings,and much more to rank site.