I’ve been running AdMob’s ads on my mobile sites for a couple of years and have been very happy with both the revenue and AdMob’s service and support.  In the last six months though I’ve seen AdMob’s fill rate decline from nearly 100% to about 60% with a corresponding decrease in revenue.  I suspect the decline is due to the recession combined with the huge increase in the number of mobile sites and mobile web traffic that has occurred this … Continue reading →