3/23/06 update: it seems Performancing metrics is having some growing pains. They are losing a lot of my sites traffic :( I’m hoping they will address this quickly!
In the meantime, they’ve kept busy and introduced their API.
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iwik is an Open Source solution to measure your website audience, that is a true alternative to Google Analytics and Xiti! One first big difference is that contrary to the two latter Piwik keeps your visitors’ data on your own server. That means you can be assured that nobody else gets access to them! It is undoubtedly a good point as tracking and personalized advertising are more and more unwelcomed by users.
more informations on: http://ocarbone.free.fr/blog/?p=254