[natdude]

Thanks, that's a good point - do you think some analysis of advertising would interest you?

There may only be a couple of ads per 'sample' though, so maybe not enough to be interesting.

[nenaoki]

I reckon it's mostly noise. An ad I saw three times in the sample was just an awful mobile game I don't deserve to be subject to ads about, and the other ad I saw twice was just based on my location.