Postkarten an Assange

Jeremy Hammond just said in his talk, that when he was in prison, postcards from CCC-Camp helped him a lot not to despair...

So maybe it would be nice to have in the postoffice a list of people in prison for hacking or whistleblowing and their adresses, so lot of people cpuld write them postcards?

Here the adress of Assange, I found in the net, maybe someone could verify?

Mr. Julian Assange A9379 - AY Prison Belmarsh Western Way London. SE 28 DEB. United Kingdom