There are several techniques that you can opt for building the links. Link building ha s a great importance over the search engines. So, use the links wisely. It is believed that the most common method of link building is to use a forum just to create the profile page, and also the signature of the link. Signature links are such links that are found at the bottom of the comment you made by default. Apart from that blog posting, blog commenting, directory submission, article directory submissions are also very effective and useful. What are techniques that you follow?