Even if I did visit RedSoxFansWhoAlsoWearRedSocks.com a lot maybe I already have enough red socks. Which has happened to me recently in this example. I have be

Even if I did visit RedSoxFansWhoAlsoWearRedSocks.com a lot maybe I already have enough red socks. Which has happened to me recently in this example. I have been researching a new laptop for the past three months. Finally I decided on getting a ThinkPad x201. Not once did I see any laptop ads on any sites I visited except the specific niche research sites. Now I see Lenovo ads everywhere. They're on slashdot, facebook, boy genius reports. These ads would have been useful to me before my purchase, not after. My point is that using the topic of the site alone isn't enough. Even on facebook, which probably has the most detail about me than any site, they still get the ads wrong. I rarely find them relevant to my life and needs.