Flick to the right page and a picture tells a thousand words minus nine-hundred and ninety-nine. As expected Flickr's involvement increases, this clue points to a picture that may tell us just one word (1000-999). It turns out that Flickr posted http://www.flickr.com/photos/39830063@N08/3683348696/ which is an extract from Dorian Gray by Oscar Wilde, with one magic word concealed. Those who had the exact book confirmed the word is PRIVATE
Interestingly the photo was tagged with clues! - 2 tags - clue 17, 0822222752. The 0822222752 turned to be the ISBN of a book called Third, making the possibility the third magic word (or third word in url) could be Private.