Hey mate, if I got it correctly, you must mean google ad, this is because you searched 1PG too many times in your browser, google will learn this behaviour then "think" you want more information about 1PG, then it will start to display these info for you, google bought multiple placeholders on most of the popular portal sites (news, smh, hotcopper) to display relevant information you need (that is why people are paying for google ad) , to be honest, the cost is not much compared to TV ad