Chats and Forums

Developer's Place
Discussion forum where developers can solve problems and talk about technology. Includes Javascript, CSS, Java, JSP, Actionscript, Delphi, C++, C, C#, Databases, Perl and PHP.
http://www.developersplace.com

Dev-Exchange.com
Free IT forum and resources for developers and designers.
http://www.dev-exchange.com/

Geo Source Code
Forum with code of many programs and projects: general topics, data structures, numerical analysis, graphics, compiler construction, algorithms, system programming; C/C++, Visual C++, PHP, MySQL, Java, JavaScript, D/X/HTML, CSS, ASP/ASP.net, JSP, Assembly, Visual Prolog, SEO.
http://www.geosourcecode.net/

GO4Expert
A forum for developers that wish to discuss all major programming languages such as C++, Java, .NET.
http://www.go4expert.com/

Microsoft Forums
Fora for technical questions about Microsoft products and technologies. Overview page by language and topic area.
http://forums.microsoft.com/

MSDN Forums
Offers various forums for software developers about the multiple Microsoft, windows and .NET technologies.
http://forums.microsoft.com/msdn/

Oceanius Networks
A medium size IRC network for teen programmers, and teens at heart.
http://www.oceanius.com

Programming Forums
Help forum for application development and script programming.
http://www.programmingforums.org/

ProgrammingTalk
A forum for programmers covering the major programming languages and technologies.
http://www.programmingtalk.com/

Stack Overflow
A language-independent collaboratively edited question and answer site for programmers. Questions and answers displayed by user votes and tags.
http://stackoverflow.com/

Talk about Programming
Talk about programming languages from A to Z.
http://www.talkaboutprogramming.com

Wrox.com Programmer to Programmer Forum
Center for the tech community to "meet" to ask questions, give answers, and make comments.
http://p2p.wrox.com/

Young Computer Programmers Forum
A forum aimed at helping younger people that are interested in computer programming.
http://www.youngcoders.com