Viral content has come a long way since kitten videos and epic fails. That isn’t to say those topics aren’t still staples of Internet success, but the stories that were most popular in 2013 showed that we’re willing to think a little bit deeper than squee and slapstick humor. In fact, looking back at some of HuffPost’s most shared stories of the past 12 months tells us a lot about ourselves and the things we love enough to tell our friends. The 13 story lines below show exactly what it took to break the Internet in 2013:– http://huff.to/1dneNvF