Organic Search is the dominant source of web traffic to websites. Organic search results are the ones that are at the top of the search engine results page (SERP) after you query something on a search engine, such as Google, specifically the results that do not have the word "ad" next to them.
SEO can be difficult to understand as a whole, so for simplicity let us break it into three main parts:
Combined
textA textBRetail & eCommerce
textA textBMedia & Entertainment
textA textBBusiness to Business
textA textBTechnology
textA textBTravel & Hospitality
textA textB