Second vote for Piwik. It's free and open-source, install it on one domain and you can then add multiple sites to it, just like Google Analytics. In fact, I've

Second vote for Piwik. It's free and open-source, install it on one domain and you can then add multiple sites to it, just like Google Analytics. In fact, I've found it's significantly sped up my page loading times, although need to test this further. In addition there are plugins for every major CMS and blogging system out there. I'm just waiting for the time that the ClickHeat* plugin works :) * ClickHeat is a free heatmap available here: http://www.labsmedia.com/clickheat/index.html http://www.labsmedia.com/clickheat/index.html