SEO: Search Engine Optimisation. This is the process of altering key parts of your site, helping you to gain visibility in the search engines

SEF: Search Engine Friendly. Usually applied to a URL in your site. This is making your URLs ‘friendly’ to the Search Engine Spiders, which will ensure your site gets listed higher in the search engines.

Spider (Search Engine): A spider is a program that search engines use to automatically visit your site, and index it for their search database.

PPC: Pay Per Click. Have you ever noticed the “Sponsored Links” that are displayed when you search for something in Google. PPC is the system that puts your links in those spaces.