I mainly learn by doing. Before doing something though I like to read all about it so that I have an idea about what I do, this way I won’t be jumping in head first without any idea on what to do. I read a lot of how to guides whenever I am going to be doing something new, like wiring something or fixing something.
I have sent tutorials through the article submission a few times, nothing really that I had to look up, but stuff that I already knew how to do. Stuff like the tutorials on this site, or other things users might not know how to do. It is a good feeling to help other people do things they may not know how to do.