Ok so when I'm searching for something on my computer I'm presented something other than the files I'm searching for right?
From Wikipedia:
"Advertising is a form of communication for marketing and used to encourage or persuade an audience (viewers, readers or listeners; sometimes a specific group) to continue or take some new action. Most commonly, the desired result is to drive consumer behavior with respect to a commercial offering, although political and ideological advertising is also common."
Sounds to me it's exactly the definition of advertising.
From Wikipedia:
"Advertising is a form of communication for marketing and used to encourage or persuade an audience (viewers, readers or listeners; sometimes a specific group) to continue or take some new action. Most commonly, the desired result is to drive consumer behavior with respect to a commercial offering, although political and ideological advertising is also common."
Sounds to me it's exactly the definition of advertising.