Google Analytics severely underreports traffic from sites that frame the pages on your site including Google Images, Google Video and others.

Red text isn’t always bad in Google Analytics. Just because something went down relative to other things, doesn’t mean it’s not improving on it’s own…

Google Analytics’ new weekly and monthly graphing is a wonderful enhancement. We find that monthly graphs usually smooth the data too much and should be avoid, however the weekly graphing enhances the understanding of trends even on sites with relatively even daily traffic.

Google Analytics is not exactly a real-time service. Numbers filter in from a variety of sources and then when everything is in end-of-day processing is done and the numbers are finalized. However, this can happen much later than you think… This article tells you a quick way to know if the data have been finalized.