In order for your website to solidify top rankings within the major search engines, you need to work towards developing a solid backlink campaign. The reason why backlinks are such a critical component in a successful search engine marketing strategy is due to the way that search engines like Google place value on your site. Google measures your website's overall relevancy based on who is linking to you. It's a way for them to quickly evaluate your website and to connect it with a specific niche market. Every backlink is like a vote for your site. The more votes you get, the higher your site will rank. In addition, an effective backlinking campaign may help you to rank well for some highly competitive keywords.