You can't go wrong checking out Dave Barry's review of 2013.
Were there any new trends in 2013? Yes, but they were not good. Kale, for example. Suddenly this year restaurants started putting kale into everything, even though it is an unappetizing form of plant life that until recently was used primarily for insulation. Even goats will not eat it. Goats, when presented with kale, are like, “No thanks, we’ll just chew on used seat cushions.”
Another annoying 2013 trend was people who think it is clever to say “hashtag” in front of everything. Listen carefully, people who think this is clever: hashtag shut up.