With the first big snow storms of the season working the way across the country, snowboarders are flocking to resorts to take advantage of Mother Nature's early Christmas present...fresh powder.   If you love snowboarding, keeping yourself free of injury will be in the back of your mind as you hit the slopes.  After all, snowboarding is not an easy sport on the body.  There are many common snowboarding injuries that you need to be cautious about.  More than anything just remember the best way to prevent an injury while snowboarding is to get in shape before you hit the slopes, consider wearing a protective brace if you've previously injured yourself, and, most of all, know your limits.