Around Atlanta, Georgia Navigator is the place to check up on your commute -- the Georgia DOT does the whole camera, map, speed thing, but at best this was an iffy thing to find information. But they redesigned, and did a fantastic job! Easy to find, easy labeled, and most importantly they put the most serious traffic blocks at the top of the first page.
Also, their maps are a lot more accurate and easy to read; their system for errors is actually marked with a severity legend. Also, there's a trip time calculator and a weather guide.
For comparison, here's the old one on the Wayback Machine.
Seriously nice job, guys!