The British Foreign and Commonwealth Office has a reputation for being much more savvy about the rhetoric of Web 2.0 than their American counterparts in the State Department. Now they have announced a new contest, "Photo Challenge - Better World, Better Britain," for those interested in participating in their Flickr group. They've also mapped the data. So far, the page only reflects content from eight entries, and strangely they misspell the popular photo-sharing site as "flickR" with an odd terminal capital letter.
You can also view the larger photostream of the diplomatic corps here.