Link building is a SEO optimizing process that every webmaster must do it, if he want to see his website growing, getting higher and higher pagerank all time. There are a lot of ways for building backlinks to your website, you can try all of them, or you can choose the ones what delivery the fastest results to you, with less effort. Forum posting, Article marketing, Directory submission, Blog posting and commenting, Social bookmarking - all of these techniques is very good for optimizing your site's SEO visibility, but all of them needs too much time. I don't have too much time for doing all these things, so when I have some money, I am always purchasing backlinks on high PR sites and blogs. These bought backlinks was delivered fast for me and helped me a lot on my SEO, in only a few weeks my website got PR3 from PR0! And how about you? What other type of link building do you use? What of them is delivering you the fastest results? Can you show for us your best link building methods, to everybody can learn more about these methods?