This was orginally posted by ShadowBoxer:
Because of some suggestions, I'm going to try to gather some good programming resources in this thread. If you know any good websites, either post them here, or PM me and I'll add them to this post.

Tutorials, Books, Utils, Misc

• http://www.freeprogrammingresources.com/books.html (Tutorials)
• http://programmersheaven.com/ ( tutorials, examples, utils)
• http://www.maththinking.com/boat/booksIndex.html ( books )
• http://computer.howstuffworks.com/ ( ALL )
• http://www.developer.com/
• http://programmingtutorials.com/ ( tutorials )
• http://www.sysinternals.com/ntw2k/utilities.shtml (freeware utils)
• http://www.wotsit.org/ ( file formats )

Visual Basic / *Basic

• http://www.freevbcode.com/
• http://www.vbtutor.net/vbtutor.html

Java

• http://java.sun.com/ ( API's, Examples, Tutorials )

TCL / TK

• http://tcl.tk ( Tcl/Tk info, with man pages )

Source Code / Examples

• http://oopsilon.com
• http://sf.net
• http://www.planetsourcecode.com

ASM

• http://asmcompo.org ( ASM Competition )
• irc://irc.efnet.co.uk/asm ( ASM on IRC )
• http://linuxassembly.org/ ( Linux ASM )
• http://intel.com/ ( Intel )
• http://amd.com/ ( ASM Manual )
• http://www.madwizard.org ( x86 ASM )
• http://win32asm.cjb.net/ ( x86 ASM )
• http://www.masm32.com ( x86 ASM )
• http://nasm.sourceforge.net/wakka.php?wakka=HomePage ( x86 ASM )

OS Development

• irc://irc.freenode.com/osdev ( OS/Low Level projects )
• http://my.execpc.com/~geezer/osd/

Windows Programming / .NET

• http://www.winprog.net
• http://msdn.microsoft.com/
• http://www.codeproject.com

Python

• http://www.python.org/topics/learn/
• http://www.awaretek.com/tutorials.html
• http://diveintopython.org/
• http://www.tutorialized.com/tutorials/Python/1
• http://www.techtutorials.info/python.html
• http://www.techiwarehouse.com/Python..._Tutorial.html

Delphi

• http://www.delphi3000.com
• http://www.delphicity.com
• http://www.delphibasics.co.uk/
• http://delphi.about.com/
• http://www.lmc-mediaagentur.de/dpool.htm

C / C++

• http://www.cplusplus.com/
• http://c.rm-f.net
• http://www.eskimo.com/~scs/C-faq/top.html
• http://www.cprogramming.com/
• http://davidrobins.net/code/cpp/EFnet_cpp_faq.html
• http://cplus.about.com/od/beginnerct...blcplustut.htm

Game Programming / Graphics / AI Programming

• http://www.gamedev.net/ (game programming)
• http://ai-depot.com/Features/Tutorials.html ( AI Programming )

Markup Languages

• http://www.w3schools.com/
• http://webmonkey.wired.com/webmonkey/programming/

PHP

• http://www.php.net/
• http://www.w3schools.com/php/default.asp
• http://webmonkey.wired.com/webmonkey...php/index.html

Perl

• http://www.cpan.org (Modules)

IRC Channels on EFNet

• #asm
• #OSDEV
• #C
• #C++
• #winprog

Post more links, and one of the mods will add them to this list!
-- Iron