Search engine marketing (SEM) is a form of Internet marketing that involves the promotion of websites by increasing their visibility in search engine results pages (SERPs) primarily through paid advertising. 

SEO stands for “search engine optimization.” It is the process of getting traffic from the “free,” “organic,” “editorial” or “natural” search results on search engines. 

Remarketing is a clever way to connect with visitors to your website who may not have made an immediate purchase or enquiry. It allows you to position targeted ads in front of a defined audience that had previously visited your website - as they browse elsewhere around the internet. 

Affiliate Marketing is the process of earning a commission by promoting other people's (or company's) products. You find a product you like, promote it to others and earn a piece of the profit for each sale that you make. 

Google AdWords is an online advertising service developed by Google, where advertisers pay to display brief advertisments, service offerings, product listings, and video content within the Google ad network to web users. 

Google Analytics is a freemium web analytics service offered by Google that tracks and reports website traffic. Google launched the service in November 2005 after acquiring Urchin.