4. The server system of claim 1 , the acts further comprising synchronizing content stored on the first eBook reader device with the data store.
4. The server system of claim 1 , the acts further comprising synchronizing content stored on the first eBook reader device with the data store. 6. The server system of claim 4 , wherein the synchronization is performed in response to a change in content stored on the first or second eBook reader device.