You can pick up a new bulb at any local autoparts store. The bulbs run about the same price as a standard headlight bulb. You can pop the hood and reach down to get to the backs of the light housings. They are the same connections as the headlight bulbs.
If you have the means, alot of us have moved to aftermarket fog/driving lights with good success. An aftermarket set will run ab round $60 complete and will give off better light. If you think you might want to go this route let us know and we can help you out.