Annoying placement targetted ads

Lots of scam and irelevant ads, why do they do it?

[graeme_p]

Placement targeted ads are showing in my ad review centre that are completely irrelevant to my site, as well as a number of scams (typically work from home and paid surveys).

The scammers presumably simply want to show their ads anywhere they can. What about those with irrelevant ads? I assume that they are placement targeting as many sites as possible. What do they get out of it? Are other people seeing the same.

By irrelevant I mean completely irrelevant to the topics on my site, and with quite a few in foreign languages.

[zuses]

I've just blocked 2 site targetting ads, both in Spanish, one - IQ test, another - mobile content. I suppose that cost of clicks is very high so these adss are often shown for visitors but because they never click spamers have a lot of traffic for nothing. However after removing I do get some clicks every day from the same channel & pages.

[Lame_Wolf]

Funny this should be mentioned today. I just blocked a totally unrelated "make home from home" advert from my site. Google preview tool never picked it up either.

And, I have never looked up such things in google etc., so it cannot be this new thing where they follow you from site to site.

[realmaverick]

I thought it wasn't being released until April 8th?

[zuses]

Moreover if it was nobody can opt out of showing targetting ads, only opt out of letting Google to target your visitors interests