You need to know where people can find you as well as look for you as well as how they found you. This list of websites will help with that. You also need to know this about the competition. This list came largely from KissMetrics, they know a lot of things and I often pull things from them, especially if they work. The often share other valuable insights into this Net world.
Google Analytics – Hours & Days Report
Setting Up and Using Custom Reports in Google Analytics