I've been on a Thor kick for a while now. This evolved from a throw away sketch I did one night. I decided to turn it into an inking tutorial for my students. Figure I can do something like that here as well.
So, we have a fully penciled piece of artwork. Before you begin to ink it, there are several things to consider. The first is what tools you will be inking with. This will very much determine the final look of the piece. For instance, a brush will give the drawing a very natural organic look. A tech pen will make the piece very angular and will not allow for very much line weight variation. On this piece, I will use a combination of both. Next you have to consider where to place your blacks. Here I've indicated where my blacks should be, though this may not always be the case. As the inker, it may be up to you to determine where to place the blacks on an image to allow for good composition. Remember, too much black can muddy an image while too little will not have enough depth.