except titles i don't remember and things without title:

Version 0.5.0:

For Learning C, NCurses, ConIO:
- Microsoft C 4.00 Reference Manual
- Turbo C++ 3.0 User Manual
- Turbo C++ Help files
- 'man', the UNIX e-Manual (Solaris, Slackware, Debian editions)

Version 0.4.0:

For Learning GTK:
- The Gtk+ Tutorial
- The "Think 0.3" Source Code
- Source Code Generated By "Glade"

For Learning XLIB:
- The "AfterStep 1.0" Source Code
- Xlib Programming Manual, O'Reilly
- Xlib Reference Manual, O'Reilly

For Base Concepts:
- Common LISPcraft
- Programming Language Choice: [...] (livre)
- Donald Knuth's Homepage
- many other sources I don't remember...
- a book describing the ALADIN pseudocode/methodology
- Alain Dsilets' wonderful head.
- slashdot.org

For Learning Perl:
- the camel book.
- the panther book.
- the perl man pages.
