SEO is a process of correcting your existing website or text on web pages. SEO optimizes your site in terms of keywords and articles present in your web pages. By optimizing these components, search engines recognize your site and place your site in prime position on the search results.
Adwords, another internet marketing option, is advertising that enables you to place your advertisement on the top or right hand side of the search results pages on Google and other affiliate websites. Internet users type in keywords relating to your product or service and your advertisement is pulled and placed onto the search results page. The visitor then clicks on your advertisement and it takes them directly to your website. The advertiser will however pay each time someone clicks on the advert, as AdWords runs on the pay per click system.