> Yeah, it's even got a name: shopping.
So, for direct to consumer companies who only ship online, SEO?
Here's the thing: ads can be useful.
Awhile back I got a, highly targeted, ad for high protein sugar free cereal. That's awesome! I am 100% the target audience for that product, and until I saw that ad I had no clue it existed! To find a product like that I'd have to search for it, but I would never search for an entire new category of product that I didn't know about.
Same thing for the fitness app I am using (BodBot, it is amazing!). I am quite literally healthier right now because of a targeted advertisement.
Was I aware of fitness apps before then? Sure. But the ad for BodBot was informative about what features differentiated it from the literally hundreds, if not thousands, of other competing apps.
Do most ads suck? Sure. Should ads be highly invasive? Nope. But interest tracking and basic targeting actually help me find products and services that I want to buy!
Facebook in particular, for all the things wrong with it (long list!) has some amazingly relevant ads that inform me of products that I never knew about.