Two new photos from Half-Blood Prince have been released online: one features Luna Lovegood wearing her famous lion's hat; the second is of the Carrow twins at one of Slughorn's dinner. They can be seen here:





Harry Potter and the Half-Blood Prince will be released July 17, 2009.

Source: ScarPotter

UPDATE: A new promotional image of Harry has been find on Tinypic and can be seen below, courtesy of The Narnia Queen:



UPDATE #2: A small new promotional image of teenage Tom Riddle has been released by Oclumencia and can be seen here: