I have used Xfactor's ads placement more than a month ago and I got crazy CTR of 25-50% on a lot of my sites, suddenly, this past week, I only got 0,1,2 clicks! average of 1 click per day for the past week, for all of my sites! I usually have 300-500 unique visitors each day from all of my sites combined(approx 20), and I usually get more than 15 clicks per day. I even added about 10 more sites this week that got 50 visitors for each site per day. So the total traffic to all my sites is probably now more than 1000 per day. What is happening? any theories? suggestions? should I remove adsense from all of them and find another ads company? what do you think? BTW, 80% of my sites are autoblogs and 20% are micro niche combined with autoblog.