Google Analytics (GA) is a free service offered by Google that generates detailed statistics about the visitors to a website. wikipedia.org

Google AdWords is Google's main advertising product and main source of revenue. wikipedia.org

Search engine marketing, (SEM), is a form of Internet marketing that seeks to promote websites by increasing their visibility in search engine result pages (SERPs) through the use of paid placement, contextual advertising, and paid inclusion. wikipedia.org

An SEO audit is an assessment to determine whether or not adjustments need to be made to a site from SEO perspective.

Digital marketing is an umbrella term for the marketing of products or services using digital technologies, mainly on the Internet, but also including mobile phones, display advertising, and any other digital medium. wikipedia.org

Social media optimization (SMO) is the use of a number of social media outlets and communities to generate publicity to increase the awareness of a product, brand or event. wikipedia.org

Object-relational mapping (ORM, O/RM, and O/R mapping) is a programming technique for converting data between incompatible type systems in object-oriented programming languages. wikipedia.org

Technical writing, a form of technical communication, is a style of writing used in fields as diverse as computer hardware and software, engineering, chemistry, the aerospace industry, robotics, finance, consumer electronics, and biotechnology. wikipedia.org

Google Webmaster Tools is a no-charge web service by Google for webmasters. It allows webmasters to check indexing status and optimize visibility of their websites. wikipedia.org