Links

Some links.

Google

Google search engine : http://www.google.com

W3C MarkUp Validation Service

Check the HTML code of your Web pages : http://validator.w3.org
Valid HTML 4.01! : these pages uses valid HTML 4.01 code.

W3C CSS Validator

Check the code of your style sheets : http://jigsaw.w3.org/css-validator
Valid CSS! : this page http://philfri.grece.free.fr/pages.css is a valid CSS file.