On all sorts of web sites that I visit, I get the same "Overachiever" ad for the Tek DPO2000B series of oscilloscopes, sometimes multiple places on the same page. I must have googled it once, and I guess google sells the ad links to other people.
I have a DPO2024 and don't like it much. It's buggy and slow and the menus are awkward. I keep clicking on the ad links, hoping they will realize I'm burning their click budget and stop pushing the dumb ads. No luck so far.