All five of 2013's Oscar-nominated animated short films have found their way online for you to enjoy and I have included them all directly below for you to watch and then vote on your favorite.
Among the five, Disney's Paperman is the favorite to win, but Minkyu Lee's Adam and Dog has certainly gained a lot of attention since it came online. The story of the latter is just as you'd expect, a story of Adam in the Garden of Eden and the birth of the idea "man's best friend".
In addition to those two you have Fresh Guacamole by PES, Timothy Reckart and Fodhla Cronin O'Reilly's Head Over Heels and David Silverman's Maggie Simpson in "The Longest Daycare".
Paperman remains my favorite of the bunch while Adam and Dog is quite good and the Maggie Simpson short is quite fun. I wasn't particularly a fan of either Fresh Guacamole or Head Over Heels, but why don't you give them a watch and see what you think.
I've included two polls at the bottom of the post, one for you to vote on your favorite and a second to vote on which one you think will win the Oscar.