Hi There are lots of wordpress stats plugins.. which one is best ? Should track search engine keywords too.
The built in stats plugin has all the info you'd need I'd think; and you can add Google Analytics to that for even greater detail
Nothing that I know of comes built into WordPress. I get my information from Google Analytics -- just paste the tracking code into your footer and you're set.
Looks like everyone is recommending Google Analytics, I agree. GA should be your first go. Here is the Ultimate Google Analytics download page. Make sure you review all documents prior to installing. Here is the download for Counterize wordpress plugin If you need some help lets us know.
I also use the "Ultimate Google Analytics" plugin. All you have to do is enter the GA code into the plugin once, instead of having to manually add the code to all of your pages.
I am not using any other plugins to track the stats. I just use Awstats which comes with my hosting. so no additional plugin and no additional burden to wp database. (no server overload)