If you want to buy a keyboard, then you visit sites from where keyboards can be bought. Meanwhile, when you are doing other things, you shouldn’t be seeing adve

If you want to buy a keyboard, then you visit sites from where keyboards can be bought. Meanwhile, when you are doing other things, you shouldn’t be seeing advertising, least of all ads specifically targeting you. You seem to find it hard to understand that ads are aesthetically unacceptable to intelligent people. Do you see ads on the pages of a novel you are reading in a paper book?