Back in the day, I remember good ole WebTrends was the main company to go to for site statistics. But now, it seems there are so many out there, it's hard to know how a web tracking tool fits into your plan for world domination.
Why do you....Why DO YOU NEED IT?!??!?
For those of you who don't have any web statistic package on your web site, I would strongly encourage you to take action now and add one of these metrics sites to your web site or have your devigner add it for you. It's kind of like writing checks without recording it in your checkbook. You receive visitors, but you don't where they came from. So how can you determine where to focus your efforts?
One of the items Aaron talks about in his post of optimizing page load times is why pipelining isn't enabled in Firefox or IE when it ships.
I guess they want to figure out who is smart enough to enable it? I don't know.