On page SEO involves using relevant keywords on pages to rank well in search engines. Links are important as they act like votes that help determine search rankings. Different types of links carry different weight, with links from pages with high PageRank or authority carrying more value. Several manual and automated link building techniques can be used to build relevant links from other sites, including creating shareable content, tools, and campaigns or syndicating content with link requirements. Social media can also be leveraged for links and traffic by creating engaging content and building followers on sites like Wikipedia, Digg, StumbleUpon, YouTube, LinkedIn, Facebook and Twitter. Any link building or social media use should be natural and contribute value without overtly promoting