I make some tutorials. This is low level tutorials but can give some refresh for your mind and it's good to know something new.
Install povray and arbaro under Fedora .
Remote Web Server PHP using the NetBeans IDE
Alice - 3D educational programming environment
Create first android project using adt-bundle-linux...
Simple way to create png image with an input text.
Using pip for installing and managing Python packa...
All of this tutorials can be read here.
If you want something special send me a mail.
I will try to make new tutorials with gcc , fasm and maybe OpenGL.
Thank you. Regards.