Virgin Mobile in Australia is using a photo of mine in their ad campaign.
There's some controversy about Virgin's use of CC-licensed flickr photos on their billboards. You can read more about it and find the links here: flickr.com/groups/379879@N24/discuss/72157600565316699/
I, for one, didn't realize that the default licensing of my photos would allow a commercial company to use them for advertising. I'm going to have to reread the fine print.