2011/4/18 MZMcBride z@mzmcbride.com:
The bigger concern would be whether doing so is acceptable under the Wikimedia Foundation's privacy policy. I'm not sure how much data is transferred simply by users loading an iframe from another site or what other risks there might be from doing so.
Presumably it'll pass a referer header, which means the 3rd-party site would know who (IP and account, if they have one on their site, like on Facebook) visited which Wikipedia page when. I'm not very familiar with the privacy policy, but I'm pretty sure this is shady at the very least.
Roan Kattouw (Catrope)