During training sessions, I usually took notes and save them for my later reference. Although it's not pretty, I think it might be useful for everybody else who want to learn about Linux.
So, here is the (materi-raw-training-2010.tar.bz2) collection, tar-ed and bzip2-ed :)
As for the license, otherwise specifically mentioned in the documents, all the documents there are licensed under Creative Common License Attribution Non Commercial Share Alike 3.0 Unported.
Its md5sum, in case you want to make sure the file hasn't been tampered one way or another, is: