Forum Moderators: martinibuster
120x600 and 160x600 - Sky and Supersky
468x60 - Banner
300x250 - MPU
So when making a site it would be sensible to allow this for advertising. The other sizes I don't come across day to day and I would be surprised if any of the bigger boys would actually spend much time supporting them.
above the fold below top navigation right in the center works best in my case, and that's after years of testing.
I have sites on different topics and with different layouts. I've found that different sizes of ad blocks in different locations work well on some sites but not as well on others.
And another factor is whether you have a lot of returning visitors vs. hit-and-runs.
It's another one of those things where it's useful to find something that seems to perform reasonably well and isn't gawdy to your visitors - then run with it. Continuous testing after a point may or may not be worth the opportunity cost.
FarmBoy