SPIP : SPIP is a publishing system for the Internet in which great importance is attached to collaborative working, to multilingual environments, and to simplicity of use for web authors.
SPIP

SPIP Screenshot
Overview
SPIP is a publishing system for the Internet in which great importance is attached to collaborative working, to multilingual environments, and to simplicity of use for web authors. It consists of a collection of files installed on a web server which allow you to take advantage of a number of automated tasks: multi-user management, laying out your articles without the need to use HTML, easily modifying the structure of your site, etc. Using the very same application as used to browse a site (Netscape, Microsoft Internet Explorer, Mozilla, Opera...), SPIP enables you to build and update your site thanks to a very simple user interface.

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Features

Petitions using SPIP

Image processing

Creating a multilingual site

Internationalizing Templates

Inserting LaTEX mathematical formulae

Typographical Images

Automatic image processing

Content Syndication

Multimedia and graphical processes