We love Google Analytics – it’s a great, free service and we use it on all of our websites.
However, one must-have feature we would add is the ability to add change-point markers to the time line. A change-point would be any time you make a change to the content or design that you think will improve performance. A major change-point would be a full site redesign, but it could be something a small as a change in your call-to-action wording.
Allowing users to mark when these changes were made would allow them to better analyze the effect of the change they made, improving the usefulness and usability of the tool.
