I have noted that the link type Ad 728x15_0ads_al_s seems to pay less than the 728x90_as Ad has anyone else found this or does it swing round? granted the Adlink blends in with the site nicer however the pay per click seems lower
The first type is a 728x15 "link unit", which typically displays 4 or 5 keywords that the user can click on to view relevant ads. CTR is typically lower because users have to click twice, and I guess that the average CPC is lower because there are more to choose from (ads are sorted by descending CPC). Cryo.
Thanks Cryo I use a revenue tracker and I find the low paying clicks often fall under this Adlink and then often you cannot see who the advertiser is due to it saying View Ads for 'whatever' I have now been removing most of those ads due to them often paying below 3c