I noticed also that AdSense-Secret have added The blog's blog in their case studies, a collection of case studies of websites implementing AdSense in their websites. The case study include the old version of phpmagazine.net blogs with the old design, the current is no longer with adsense and we are today minimizing ads everywhere to find a solution and drop them defintely.

Anyway the approach of Multiple Ads is pretty interesting, and here is the conclusion of Joel in the case study :

I think phpmagazine.net has done outstanding job with multiple ads. Aside from the question of making links and headlines the same color, I'd only wonder whether a link unit could work on the right would create more clicks than one of the ad units in the body of the text.

That's something I'd want to try, but it's certainly possible that phpmagazine has already done it and found his current set-up most profitable.

I was notified about the case study before, but I didn't know that they'll choose this blog, because its the one which is making the less revenue in phpmagazine.net. It would be better if they have a look on other blogs and their different config, it looks very similar, but there is lot of small differences from a blog to another : the content, colors, ads ... etc.

Anyway today we are experiementing new things as usual, and I have already said this before that we are not interested in the revenue itself but more in the different techniques we can use. PHPmagazine.net count today about 25 active blogs not all of them known, there is at least 5 experimental blogs that are active in the background and not yet announced in public, so we are experiementing and testing everyday new things and new stuff.

Even that I took about two weeks without blogging, I'm sure that I'll be back very soon with lot of new stuff, specially that I launched recently the latest generation of social networks, with certainly blogs, groups, ... etc and lot of great features that I really can't tell in two lines.