The Ad tag already existed in the first two positions. When, in the past, we asked Google about the way to invest to get this prominent position, they used to tell us that, even if it said Ad, it was in fact an organic result over which Google had no commercial control and, therefore, it was not possible to invest in order to appear in these slots. This has changed and you can now advertise in these prominent slots. Google has launched a pilot test with a reduced number of partners and it will soon be open to more participants. Get the full story at Mirai