Cartoon Network has put up a new Riders of Berk page, which you can see here!
Character Profiles- Kinda short for a profile, but cool nontheless.
Games- DTA- Legends- Basically, if you don't have the DRAGONS- Double DVD pack with the code, these are just the legend games from the Dragon Training Academy game.
Videos & Clips- Good if you are in the US, because it doesn't work for other countries- like here in Australia :(.
Good fun! They are likely to add more content soon.