Programming

General programming

• http://www.tutorialspoint.com/

Web programming

Free

• http://www.w3schools.com
• http://www.tizag.com

Pay for

• http://www.eclasses.org
• http://www.e-careers.com
• http://www.classacademy.com
• http://www.treehouse.com (x)
• http://www.codeacademy.com
• http://www.codeschool.com
• http://www.learningtree.com

Microsoft

• http://msdn.microsoft.com
• http://www.dreamspark.com
• http://www.pluralsight.com