Web design
The skill of designing hypertext presentations of content that is delivered to an end-user through the World Wide Web .

Search engine optimization (SEO)
The process of improving the volume and quality of traffic to a web site from search engines via "natural" ("organic" or "algorithmic") search results.

Internet marketing
Internet marketing, also referred to as web marketing, online marketing, or eMarketing, is the marketing of products or services over the Internet. Internet marketing ties together creative and technical aspects of the Internet, including design, development, advertising, and sale.