I just started playing around with service called FeedJit which shows you live traffic on your site and other cool things. So in real time you can see people coming to the website. It shows the country of their internet connection, what they are looking at and where they came from.
You can see the latest info on the right sidebar right now, but check out the live feed page which updates in realtime so you see people "popping" in every few minutes. Cool eh?