This is a live shot from the web cam at Spring Creek Ranch in Jackson Hole looking northwest towards the Teton Range and Grand Teton National Park. The highest point in the middle of the shot is Grand Teton (elevation 13,770 ft). If the image is black, it's probably night time. Try again in the morning. If it's all gray, well, that most likely means a serious blizzard in progress. Just like the local residents, you'll have to wait it out.
Here's a link from a recent U.S.News update(as of January 4th, 2009) on the status of Yellowstone's earthquake activity. Bottom line: Relax, it's just doing its thing.
Bonus: This is a post that keeps on giving. Come back anytime because the cam picture updates each time you visit.