Within this illustration (by Peter Jaworowski, Executive Creative Director & Michal Lisowski, Lead Artist @ Ars Thanea) are 20 references to events that took place online in 2011. Although this isn’t a competition they do have a few signed limited edition prints to give away. Follow them on Twitter and tweet a link to the picture using the hashtag #20things. They’ll randomly pick a couple of lucky people each day. To help you along, they’ll release clues over the coming days.