2013 was a big year for Tumblr. After getting purchased for $1.1 billion by tech-world veteran Yahoo!, Tumblr's founder, the 27 year old wunderkind, David Karp, was suddenly staring retirement in the face much earlier than he could've ever imagined. Since then, Tumblr's giant has only grown, spreading their reach as the preeminent source for all things GIF-worthy, memeable, and Internet-related. Essentially, Tumblr acts as a forum for all Internet culture, pumping along on the power of trending topics, bloggers, and thousands upon thousands of selfies. Now, with the year coming to a close it's time to figure out who was using the popular blogging platform in the most creative, inspiring or hilarious ways, and who made one of The 20 Best Tumblrs of 2013. Take a look for yourself, hit "Follow," and let us know if we missed any of your favorites from the year in our comments section.