SEO works on attracting natural or organic search traffic inducing search engines to good rank your website getting more web traffic. SEM includes paid direct inclusion in search results. Non paid organic SEO and paid SEM efforts must be balanced, that one does not overwhelm the other. SMM allows for information to spread exponentially in social networks such as Facebook,Twitter, streaming video services, like YouTube, SMO does impact a website's search rankings, as positive social feedback in the forms of Likes, Shares, etc. that stands for the quality of a website, increasing its search rankings.