I have noticed that it seems as though adsense may target ads not only from thecontent on the page you visit but also from cookies or the IP address the person browsing the site has. For instance I am often at investment sites with google ads on them. When I go to visit a dating site (example) I see investing ads in their adsense box.
When I use a different PC, I don't see the investing ads.
Am I on to something or just full of bolgne?