CAT guru Dominique Pivard has been offering a lot of excellent help in the use of computer-assisted translation for many years in several mailing lists. Last year, he began to post video tutorials on YouTube.
I have personally benefited from his advice in learning to use several CAT tools. If I had to choose a Person of the Year in this field, Dominique would be my choice.
My wish for 2013 is for Dominique to keep up his good work!