Google is apparently testing new CTA buttons in Adsense. The new call to action buttons are still arrows, but the fancy new feature is that they are 3D! Google is only testing this right now, but the Adsense Publisher in the article claims it helped increase the click through rate. I haven't personally noticed this change anywhere, but I can always appreciate a strong CTA when I see one. Has anyone else seen these new buttons? Do you think the higher click through rate will last? (Assuming the higher click through rate was due to the button), or do you think people will get used to seeing this button as an ad, too?