Lately many of my friends started using AdBlock and see no ads.
I think it explains the drop in the last year of my site advertisement revenue.
dSero solution is great, it presents my users who use AdBlock a request for support. The request is simple: Do your next purchase through Amazon through my site (I heard from one of my users who live in Germany that he gets the request in German that leads to amazon.de).
When I reached the $10 limit, I got a PayPal transfer from dSero. Awesome!