Developer Sites
  • Microsoft Developer Network (MSDN)
    The biggest development reference online for Microsoft technologies.

  • Mozilla
    The homepage for the open-source browsers Firefox and Mozilla.

  • W3 Schools
    A site providing free tutorials on everything from XHTML to advanced server-side technologies.

  • PHP.net
    Home of the PHP scripting language, one of the most popular open-source web languages in use. Extensive developer resources are found here.

Google
Web msdn2.microsoft.com
msdn.microsoft.com www.php.net