My regular readers will not find this interesting but I know there are many fellow bloggers who are curious about the way the WordAds program functions.
If you look at the table of this blog’s earnings, you will see that WordPress has dramatically lowered the compensation for each ad impression. Note also that ad impressions are not the same as the number of hits. You have no way of knowing where the “ad impressions” figure comes from and why it varies from one month to another. You will have to trust WordPress on that. I experimented with placing the maximum amount of ads as opposed to a moderate amount of ads and that had absolutely no impact on the number of ad impressions.
After perusing the table, you can judge for yourself if the WordAds system is something you want to try out on your blog.