Programmers Heaven
Online site for programmers with thousands of links and files to explore. Everything from Assembler to Visual Basic can be found here.
http://www.programmersheaven.com/

SuperExpert
The community of computer experts. Get expert answers to your computer questions, read articles, download software, find a book, or get a new job.
http://www.superexpert.com/

Zen Spider Website
Information and tools for language writers and programmers.
http://www.zenspider.com/index.html

zez.org
A community site for open source developers. Articles covers several languages as well as important stuff like regular expressions and community building.
http://zez.org/

Youth Tech Coding Microsphere
A programming site for teens, by teens. A members showcase, programming challenges, resources, and information on most programming languages.
http://www.youthtech.com/codem/index.htm

Planet Source Code
Lets programmers submit code for review by other programmers; many source code samples to help educate beginners on many concepts; contests where programmers vote for the most efficient, useful code recently submitted.
http://www.planet-source-code.com/

Coding Library
Categorized source library. By programming languages and topics.
http://www.internettrash.com/users/fdb/

Softpanorama
Information on Open Source software movement. Also provides a collection of links to Linux, programming languages, databases, and networking.
http://www.softpanorama.org/index.shtml

Visualbuilder.com
Resources, source code, tips for professional developers.
http://www.visualbuilder.com/

The Programmer's Lair
Offers programs, source codes, forums, tutorials, newsletters and more for C++, Visual Basic and Delphi.
http://apurvaslair.50g.com/

ProgrammerTutorials.com
An on-line resource for programmers to learn new programming languages, find job sites and programmer web resources.
http://www.programmertutorials.com/

dev.kanngard.net
A resource for software developers, containing articles about Netbeans, Java and Lotus Domino.
http://dev.kanngard.net/

Developer.com
Provides link directory, technical articles, news, forum, and online books for Java, Linux, JavaScript, Perl, ActiveX, Visual Basic, HTML, DHMTL, XML, ColdFusion, C and C++.
http://www.developer.com/

MetalShell
A growing archive of source code examples for different languages and platforms. All code is written for the purpose of helping others learn to program. C, C++, Perl, Python, HTML sources. Shell scripts.
http://www.metalshell.com/

FunctionX
Programming resources, tutorilas and FAQs. Also geometric formulas. Microsoft OS and program tutorials.
http://www.functionx.com/

Microsoft Developer Network
Provides articles, whitepapers, interviews, and sample code for software developers using Microsoft products.
http://msdn.microsoft.com/

CodePedia
Programming languages, web development, computer science resources.
http://www.codepedia.com/

FreeCodeMomma.com
Source code, tutorials and articles in JSP, ASP, PHP, Java, Javascript, HTML, XML, Perl, .Net.
http://www.freecodemomma.com/

source-code.biz
Source code and tips for Java, PHP, VB, VBScript and other programming languages.
http://www.source-code.biz

Code Box
Tutorials on several languages (Assembly, C/C++, Java, Perl, PHP, Visual Basic), discussion forums on each, general forum, news, survey, holds quarterly programming contests. In English, despite .sk domain.
http://code.box.sk/

Teen Programmers Unite
Organization that aims to help teen programmers learn and exchange ideas.
http://www.hprog.org/fhp/TeenProgrammersUnite

Vyom Source Codes Directory
Contains categorised source codes in different programming languages - C, C++, Java, Pascal and COBOL.
http://www.vyomworld.com/source/

For Programmers
Programming related resources, including manuals, code examples, tutorials for C/C++, Perl, MySQL, Bash, Sed/Awk, CSS, Javascript.
http://anaturb.net/

BigProf Software
Contains PHP and C source code and resources for programmers. Offers tools for free download.
http://www.bigprof.com

skillreactor.org
Computer technology, programming, 3D animation: tutorials, tools.
http://www.skillreactor.org/

MediaDev
Recent news and events with specific market studies and resources for software developers. Localised for the UK, France, Spain, Italy and Germany.
http://www.mediadev.com/

Code Comments
Forums and web based access to many programming usenet newsgroups.
http://www.codecomments.com

Sun Developer's Network
Resources for software developers using Java, web services, C, C++, and Fortran.
http://developers.sun.com/

Free.Netartmedia.net
Provides information and tutorials for developers.
http://free.netartmedia.net

Dev Builder
Offers forum, articles and news section.
http://www.devbuilder.org

PetesProjects
Electronic and computer hardware, and software projects. Includes Bash, Perl and Python scripts, and a hardware video construction project.
http://www.petesprojects.com

Geekpedia
Programming tutorials and source code for many programming languages and especially for the .NET Framework. Also has software articles, reviews, news, projects, forums, blogs from the IT domain.
http://www.geekpedia.com

CleanCode
Guidelines for good software design/web page design (and examples of what not to do!), plus open-source tools and libraries for developers, focussing on Java, Perl, Javascript, CGI, and XML.
http://cleancode.sourceforge.net/

FreeTechBooks
Free online computer books, documentations and references. All which can be viewed, copied and printed at no charge for private use.
http://www.freetechbooks.com/

TechBooksForFree.com
Free online programming and computer science books (Linux, Java, Microsoft tools, C/C++, Perl and Python).
http://www.techbooksforfree.com/

Programmer's Corner
Articles, tutorials, source code. Forums.
http://www.programmers-corner.com/

Raingod
Resources for Java, Javascript, Perl, Python, Macintosh and Palm.
http://www.raingod.com

Sourcecodes World
Collection of computer projects, programs, source codes, tips and resources in C, C++, Java, Java Script, ASP, COBOL, Pascal.
http://www.sourcecodesworld.com/

Code Newbie
A programming community for everyone. Articles/snippets collections. Forums.
http://codenewbie.com

Developer Fusion
Tutorials and source code for VB, ASP, PHP, XML, SQL Server, C#, C++ and .NET developers. Plus software reviews, developer jobs, blogs and a discussion forum.
http://www.developerfusion.co.uk/

Directory of computer e-books
Links to programming related online e-books.
http://freeitbookdirectory.atspace.org/

Codefetch.com
A search engine lets you search computer books for source code in many languages, such as Java, C#, Python, HTML and CSS.
http://codefetch.com

VoiceCode Programming by Voice Toolbox
For many programmers with computer related injuries such as Repetitive Strain Injury (RSI), programming via voice is the only way they can exercise their talents in their chosen profession. Yet, programming-by-voice using off the shelf speech recognition systems is now awkward because programming languages were never meant to be spoken.
http://voicecode.iit.nrc.ca/

Mycplus
Resources for C/C++, Visual C++ and C# .Net including tutorials and articles, free source codes, and open source utilities.
http://www.mycplus.com/

Sitereview.org
Programming site reviews posted by users.
http://sitereview.org/coding/

Undocumented Printing
Various information for developers on windows printing.
http://www.undocprint.org/

IBM: developerWorks
An online collection of tutorials, sample code, standards, and other resources provided experts at IBM to assist software developers using open standards and cross-platform technologies.
http://www-128.ibm.com/developerworks/

dream.in.code
Articles, tutorials, and forums for web developers and programmers.
http://www.dreamincode.net/home/

Gepard Studio
Sources (Pascal, Delphi, C, Java), games (Java,C).
http://gepardstudio.4ezi.com/

The Fellowship of Hobbyist Programmers
A community for coders interested in collaboration, education, and fun.
http://www.hprog.org/fhp/FrontPage

FindITAnswers
Search engine optimized for software developers and other IT professionals. Focused on technical content difficult to find with other search tools and sites.
http://www.finditanswers.com/

Developer's Super Page.com
Articles and tips for Delphi, CBuilder, JBuilder and Kylix; jobs, chat and forums.
http://www.devsuperpage.com/

Code Toad
Resource index for HTML, JavaScript, Java, ASP, Visual Basic, XML and DHTML code tutorials and scripts.
http://www.codetoad.com/

Books by Patrick Henry Winston and Friends
Patrick H. Winston, (co-)author of "On To Java, Third Edition", "On To Smalltalk", "On To C++", "On To C", Artificial Intelligence, and Lisp presents his book.
http://people.csail.mit.edu/phw/Books/

DevX
Source code, tips and tricks. Most source is free.
http://www.devx.com/

Upload.co.il
Provides developers with a place to upload, meet, share, exchange ideas and codes, build, improve, bug-fix, read, redistribute, and modify the source code of contributions submitted to the site.
http://www.upload.co.il/

YOV408 Programming Resources
Community featuring programming news, articles and tutorials.
http://www.yov408.com/

CY2 Online.Net
Offers source code, view snippets and tutorials for C#, Java, JSP, and PHP.
http://www.cy2online.net/

Coder's Guild Mailing List Archive
Once a highly frequented programmer community, this archive contains four years of discussions about many programming problems for all languages.
http://www.netalive.org/codersguild/