postcrossing

Postcrossing reached its first million exchanged postcards on April 11, 2008 and has since grown even more rapidly.

Finland was the second country to follow suit, with Itella launching their own stamps in honor of Postcrossing on September 9, 2013.

The popularity of the site has even led to the academic community exploring what makes Postcrossing so successful and what other digital communication technologies can learn from that success.

The stamp was designed by Inga Turlo and features the words "Happy Postcrossing" in both English and Belarusian.

On May 28, 2014, Guernsey Post launched a stamp designed by their marketing team, featuring the words Happy Postcrossing depicted over an outline of Guernsey with a smiley face, giving the "thumbs-up" to the hobby of Postcrossing.