Is there a web statistics service or software that allows inserting custom events into the graphs for quick reference?
I would like to be able to insert an event like "on March 3rd, we changed the color of the background" and see directly in the graph that right after we did this, site visits went up 10%. I know it can be done with external tools, perhaps even Excel, but I'd love to have this right inside the web stats interface.
To see what I'm talking about - Google does this with Google Finance. This is exactly what I'm talking about. A graph on the left, news on the right with links into the graph. So the graph would be my web statistics and the news would be whatever I put there, likely changes I did to the website in question.