Search engine optimisation (SEO) vs search engine advertising (SEA)

Search engine optimisation (SEO) ‘Natural referencing’ (SEO) is so called to distinguish it from ‘paid referencing’ (SEA). SEO is short for ‘Search Engine Optimisation’. In this context, ‘natural referencing’ means that no money has been spent to appear in search results. But that does not mean that this referencing, this ranking of our site by …