W3Schools - A collection of free HTML, CSS, JavaScript, DHTML, XML, XHTML, WAP, ASP, SQL tutorials with lots of working examples and source code.
IBM developerWorks - The dW web site is IBM's premier technical resource for software developers, providing a wide range of tools, code, and education...
SourceForge - the world's largest Open Source software development web site
lockergnome.com - "... a resource for people who are curious about the world of technology around them"
MIT OpenCourseWare - "... a free and open educational resource (OER) for educators, students, and self-learners around the world"
electronic design - The Authority on Emerging Technologies for Design Solutions
Useful Software
Windows Utilities
FileSync - Great tool for file/folder synchronization, with many uses, such as keeping a portable drive and system drive in sync, making backups, comparing the contents of directory structures, etc.
V - The File Viewer - Inspect and manipulate directories and files, very fast, many capabilities.
Process Explorer - For Windows, an advanced process management utility that picks up where Task Manager leaves off.