These were pages from Jay Z's new book that were objects of a scavenger hunt / new media campaign. Pages were placed on just about everything... pool tables, dinner plates, a punching bag, pizza boxes, the bottom of a swimming pool, fish n' chips, and lots of good ol' billboards. Kudos to whatever marketing department created this beast and convinced fans to actually go out and search for their advertisements.  Check it out here --> http://bing.com/jay-z