If the Pottermore website isn't enough of a Harry Potter fix for you (and you have thousands of dollars to spare for airfare), I have some good news for you today. Universal Studios nnounced last week that they will be opening a new "Wizarding World of Harry Potter" attraction at the Universal Studios park in Japan.
Starting on 15 July, Harry Potter fans will be able to explore Hogsmeade and Hogswart Castle, including Dumbledore's Office and the Defence Against the Dark Arts classroom. Moving portraits and the Sorting Hat may speak to visitors as they journey through the castle. In Hogsmeade, fans will find shops, the Three Broomsticks tavern, and more, and outside of the castle is the Flight of the Hippogriff roller coaster.
This is going to be the second of 3 Harry Potter attractions; the first opened in Florida in 2007, and another is still under construction at the Universal Studios Hollywood park. You can find more details, including a map and a list of all of the attractions, on the Universal Studios website.