Warning. Zemanta is not always safe for work. I had a surprise today when the otherwise excellent plugin showed me a series of sexual organs as suggestions of pictures I could put in my new blog.
The blog post in question had two significant components - a list of body parts (but nothing explicit; leg, ankle, toe, head) and the word 'itch'.
I've censored the image but the URLs of the two wikipedia pictures are this female one and this male one. Don't click at work or unless you want to inspect close up organs.
I'm sure Zemanta works with Flickr's safe filter but wikipedia may be another matter. An update of a global blacklist may be in order.