Australia Post put out 6 Stamp Bulletins a year to let all stamp enthusiasts know of whats about to come out in the way of Philatelic products. In the September issue 336 they have an article on Postcrossing. If you cant read the scan you can download the PDF HERE when it is uploaded by Australia Post.
If you'd like to play along with this meme, post your Postcard A Day and link up below so we can all visit your blog. Please add the direct link to your post and not just your blog so the post is easy to find. Link back to this meme so everyone can play too.