Two great articles can be found at Darren Rowse's digital Photography School website relating to photographing moving subjects-
The technical aspects of shooting motion are easy: a fast shutter speed (or the action or sports setting) will freeze motion, a slow one will introduce motion blur. Where you go from there makes the difference between a shot that merely documents and one that uses action to paint a scene or set a mood.
Up for some experimentation? We recommend you start with panning (as in golf, swing through the ball… er, click) and then try some nontraditional composition ideas. Our pals at DPS have a great post on each.