Online marketing, also known as Internet Marketing, Internet Advertising or eMarketing, is the marketing of products or services via a website using the Internet. Online marketing ties together creative and technical aspects of website promotion which includes website design, website development, search engine optimisation, e-mail marketing, advertising and sales.

Online marketing does not simply entail building and launching a great looking search engine friendly website, nor does it mean placing a banner-ad on another website. Effective Online Marketing requires a comprehensive strategy that spans over time, constantly improving the website function and appearance to ensure the website is presented exceptionally well and easily navigated to deliver what the user wants, the search engine spiders can interpret and also focusing on the websites target market.