I have a blogger.com blog, which I created three months ago. It is on a particular niche topic, but was only able to make 5 posts on it. I installed the adsense and everything is fine as the ads are properly targeted. No PSA ads ever show in this blog. Shortly after, I decided to make wordpress blog on the same topic as that of my blogger.com blog. I was able to create 10 long posts. Installed my adsense - on the first few days, the adsense ads shown was targeted. After that, PSA ads appeared and they remain on this blog for most of the time. Why is that? Do PSA ads of Adsense tend to show more on wordpress than in blogger.com blogs?
Blogger owned by google, maybe somehow it makes blogger blog spidered more effectively by the adsense crawler
Does anyone else have similar experience? What did you do to correct it? Thanks for the anticipated reply.