So, to spoon feed it, but those 728s and big squares. I have to say that in our (C:SF) experience, the response rate discrepancy between big squares and other sizes is even larger.
Naturally this is because such ads are typically embedded in the middle of content versus around it. Often at the most interesting places in that content to boot.
Whatever the reason, you have your marching guidance if you care about clicks for that buy you are currently working on! Check out the link for more info.
Thanks for reading, and don't forget to write.
