useful web links

portals ： 

ebooks：    http://www.dhruvaraj.com/olbooks/linux/index.html 

The labs  (all things are here !) ： http://www.the-labs.com/

 

Gtk 

GTK+ / Gnome Application Development: http://developer.gnome.org/doc/GGAD/ggad.html

Writing GNOME Applications ： http://developer.gnome.org/doc/books/WGA/

 

  X 

Xlib programming: a short tutorial ：  http://tronche.com/gui/x/xlib-tutorial/

Xlib programming manual :  http://tinf2.vub.ac.be/~dvermeir/manuals/xlib/index.html

XLib HTML Manual:  http://www.the-labs.com/X11/XLib-Manual/

XV:   http://www.trilon.com/xv/

X specs:   http://cgit.freedesktop.org/xorg/doc/xorg-docs/tree/specs

X doc pdfs:  ftp://ftp.x.org/pub/X11R7.0/doc/PDF/

X proto PS:  http://cgit.freedesktop.org/xorg/doc/xorg-docs/tree/hardcopy/XProtocol