This URL: http://www.digitalpoint.com/tools/adsense-sandbox/ Just give a lot of SQL errors. Now, I don't know if this is related, but I found others websites that supposedly show adsense with ca-test publisher ID and they just get an empty space, no ads are displayed. I tried to display adsense ads in test mode in my development machine and got the same results, a blank space. I also tested remotely in a server I own and same happens Could anyone confirm if this ca-test thing is no longer working?