For whatever reason, we seem to talk about traffic quite a bit around here. Via the WSJ, and then through Joanie, I found out about traffic.com, which even though it has the obvious domain name, is a really cool service! They allow you to put in your own customized routes (in my case, entry and exit points on the Mass Pike), and it will give you up-to-the-minute traffic info on that route. You can save the routes, and (the best part) subscribe to them as RSS feeds. The feed only has the “jam factor,” a 0-10 number related to the number of incidents and congestion, but on the site, you can get estimated travel times and the locations of these incidents and congestion.
Very cool.