So small businesses don't even need a website to be found on the web these days and a Google+ Local page will get you into mobile search too, as they're set up to be mobile friendly. Must read about this local search!
Search Engine Optimisation is usually just called SEO. It refers to the things done to and for your website to help it achieve higher places in the main search results ( often called the Organic results ). Find out the best strategy of search engine optimisation!
An audit involves inspecting a scene and comparing it to known best practices and ideal scenes. Did you know? Just check out spellboundweb.com for audits marketing.