Hi, I'm in the process of starting a Private Blog Network (about 10 sites) but I was wondering how I can track the visitors for all those sites without using Google Analytics or any other service that uses a "footprint". I've looked at Piwik and Open Web Analytics but they seem to use tracking codes so I was wondering it they left a footprint somehow to link all the sites together. I could always just install Jetpack on Wordpress to get the data but then I would need to login each website separately. Any ideas on what's the best way to achieve this? Thanks a lot.