Ralph, german user of Piwik, has written a nice and detailed installation tutorial for Piwik. Piwik installation process is easy and straightforward for most people. However when you have not installed a php software software, an illustrated tutorial is very useful! Thanks Ralph.
Also check out Ralph 5min video review in German of the Piwik features:
If you’ve never heard someone speaking German, then give his video a try, I think it’s fun!
Let’s see if more international users will come up with other nice resources!