guggi2000 - 8:13 pm on Apr 14, 2013 (gmt 0)
The fallback option (default) of all these iframe tags is Adsense.
1. Is that a policy violation because Google does not want Adsense to be placed in an iframe?
2. Will the performance get hurt because Adsense may not recognize the content on the parent page (and this would be helpful for contextual ads)?