What are sources where I can learn how to use GeoServer?

I know of these two sites:


http://geoserver.org/ - which in fact is not working (at least at the moment)
http://workshops.opengeo.org/geoserver-intro/ - not only (tutorials) for GeoServer


But I am interested in more complex information, and not to read only documentation.


Question: Application deployment using MDT with no access to network.
Answer: Just to clarify, you need the offline media (not the boot media). The process is explained in the step by step guide for Deploying Windows 8.1 from a USB Stick.