SEO is an acronym for "search engine optimization" or "search engine optimizer" and is a methodology for strategies and techniques to encourage visitors to your website. In a search results page of any search engine (SERP), it is possible to obtain a high-ranking placement.
The higher a website ranks in organic (paid pages not included) results of a users search, the greater the chance that that site will be clicked on by that user. (i.e. a user generally doesn't click on link on page 94 of his search to visit a website.)
So ideally when a search is initiated, you need your website listed at the top of page one!
Content Marketing is offered by consistently creating valuable and relevant industry related information to provide an audience and develop a loyal customer base.
Social Media Marketing is becoming more prevalent. Facebook, LinkedIn, Twitter, Pinterest, Google+, Tumblr and Instagram are all pushing the boundaries of diverse media. It's another angle to help your business lead the field.