To celebrate one year of broadcasting, the GSL is doing amazing things for the fans: like having all their VODs free (!) for 48 hours (Starting September 3/4th), holding an All-Star event (Don't forget to vote!), and a writing contest. And you can even download signatures of some of the key personalities in the GSL, like Artosis, MC, Boxer, DRG, Huk, Tasteless, and Nestea.
It looks like Artosis spends more time playing Starcraft than practicing his calligraphy and that's fine. However, his signature looks rather childish when compared to MC's.