A quick recap. Google is a multi-billion dollar US-based company which derives the majority of its revenue from advertisement on the web. These ads are shown on property outside of Google’s control as well as alongside search results which lists snippets from content Google doesn’t own.
In 2005 Google introduced an attribute webmasters were free to use on links of their choice to help flag that link as “not trusted” or “possible spam”. This attribute is called “no-follow”.
