The Melbourne University Post Office, where the WikiLeaks Post office Box is, has had a last minute reprieve. It had been earmarked for closure in December last year (2010) but the Melbourne University agreed to extend Australia Post's lease on the current post office site after some opressure was applied by various bodies including the Post office Union.
The Post Office Union, Staff union and students and the local Federal Member, Adam Bandt as well as the Vice Chancellor all assisted with the union campaign to keep the post office open.
The Post office union will be lobbying for the university to provide an alternative site after the current building (The Archetecture Building) is pulled down.
The address for Wikileaks Post Box Number to which you can post donations using good old fashion postal mail is:
WikiLeaks (or any suitable name likely to avoid interception in your country)
Australia Post Office - University of Melbourne Branch