Link Building is one of the best and effective way of improving the results of your website in the search engine. Link Building process includes blog commenting, forum posting, social bookmarking, articles, directories, web 2.0, press release and many more. But all these techniques should be performed in relevant sites and sites with do-follow attributes. You need to use fresh and unique content, apart from this you need to do submission in high
PR sites with dofollow attributes and sites with .edu and .gov extension. Backlinks from such sites becomes very helpful in increasing the
PR of your website.