But also contending for attention is the large area of analytics, how many visit and how often, where they come from and what they seem to seek, the sources of their arrival and the time they spend and where they go later --- all of it is important to understand.
The 10,000 Words blog has assembled a handy Analytics 101 for anyone with a website looking to comprehend the portrait of the audience. There is nothing advanced in the piece, but it's an excellent and clear starting point.