Yesterday I removed 2 adblocks from my template - now running with one big 336*280 and an adlinks block.
My page-ctr is better now - increased by aprox 3%, ecpm is up by 15$ or so.
So one adblock plus adlinks performs better for me than 3 adsblocks - I've only been running the test for 24 hours, but it sure looks good.
No I have placed an affiliate banner where one of the adsense blocks used to be, so may be I can increase earnings that way to.
My reason for saying this is off course that I'm very happy with it, but also to remind you all to experiment. I have a very good ctr and ecpm, but still I experiment - and now I've improved it again. This is great :)
I'm doing 100+ $ a day now.