What Jo says about...
The Order of the Phoenix

Please note: unless you see quotemarks, these are summaries, and not JKR's word themselves. Please see the linked article for the actual text.

• The Order do not communicate with chocolate frog cards, or any object that would have to be carried on and remembered by the person. They use a form of communication that needs only a wand, and we have already seen it used by an order member before we even knew the order existed. [Read the exact quote from Jo's website]
• The Order communicates by Patronus; Dumbledore taught them how to do this. [Read the exact quote from Jo's website]
• In Book 7 we will become better acquainted with another member of the Order of the Phoenix. This is someone we know about but have not "met properly." [Read the whole quote from ITV, 2005]
• Nymphadora Tonks was in Hufflepuff House. [8 May 2007] [Read the exact quote from Jo's website]