1.-Visit a couple of product web pages that you have considered buying or have bought in the past.
I visited Hugo Boss webpage, and I saw a few suits.
2.-Then visit news sites and social networks you normally visit.
Later that same day I entered yahoo finance to find a Stock price.
3.-What products seem to be magically showing up in ads?
The discounted suits appeared on the yahoo finance website.
4.-Are these ads effective?
Not for me.
5.-Do they make you more likely to buy?
No, I like the brand because of the quality, and I am the kind of buyer that first checks the merchandise and the next day goes and buys the thing, but if I feel that the seller is insisting too much, I usually decline in my intentions to buy the product.