[ghayes]

The worst for me was a site (forget which one) which asked me to download the app, and then redirected me to their homepage when I declined (as opposed to the article I was trying to read). That was an unfortunate user experience.

[Shank]

This, so much this. I think Gawker is one who does it - if you change from the mobile version to desktop version you lose the page you were on.

[omarchowdhury]

Looking for that page again means more ad loads.