nomis5 - 9:14 pm on Apr 13, 2012 (gmt 0)

What I wonder about those 300x250 ad blocks though is if your visitors have to scroll down with their finger on an iPhone, don't you generate a lot of accidental clicks?

Good question, I've no answer to that. I have those ad size blocks on my pages plus I have in-text Vibrant media ads. When i view the pages on my mobile I can avoid the accidental clicks but that may well be because I know what's an ad and what is not.

When I view my pages on a PC I almost always end up showing one of the in-text ads cos my mouse is going past them across the page.

But my earnings in Adsense at the end of the month seem to be about 98% of the click value so as far as I can see Google aren't detecting invalid clicks. And mobiles are now 30% plus of my page views.

I would really appreciate any opinions on this.