Programming languages
Video: Introduction to Computer Science and Programming - MIT Course
Free Quick Reference Cards for Programmers.
Dive into Python - Free book
Practical Common Lisp - Free book
Ruby Study Notes & Tutorials
"In a Nutshell" Oreilly Series of Free Books
API Reference Online - GotAPI.
Computer Programming Algorithms Directory
Oracle Professional
Highly technical solutions for developers and DBAs who work
with any of Oracle's servers, including extensive coverage of
both Oracle9i Release 2 and Oracle10g
Java Update
ASP WebRing
Programming Junkies
Java Skyline
ACM Crossroads Objective Viewpoint
Training Course Notes for Core Web Programming
The PDF versions of the slides are free to everyone. They are all you need if your goal is learning Java and Web technology.
Tutorials from Allsyntax.com - Site Design Made Simple
PHP is a fairly simple coding language that has many uses. This tutorial teaches you how to build a simple interface by using PHP to assemble many html files in to one interface.
How to Start Programming
The intent of this book is to introduce computer programming to a complete beginner.
Quick Reference Cards
In this section you will find many Quick Reference Cards on Java,MySQL,XML
Papers & Tutorials on C++,Java,XML,JSP,UML
In this section you will find many hands-on tutorials and papers which focus on certain aspects and technologies where you -as a programmer- can come accros with.
Algorithms
The design of algorithms is studied, according to methodology and application.