OSG4web is the result of a CINECA and  ITABC-CNR effort to provide a framework for in-browser openGL-based application wrapping. The framework allows the development of OpenGL and OSG based applications tha open windows within the browsers, allowing javascript bidirectional interaction with surrounding page elements. Currently the supported browsers are Firefox and IE and the OS platform is Windows XP-Vista. Nevertheless, most part of the code is OS neutral. The name comes from the history of the project that tried to revive osgax activeX wrapping. The projects started in 2004 to fill the need of web-enabled 3d terrain and geo-spatial data abrowsing in a pre-google-Earth time. One of the main goal of this release is the de-coupling of the application specific (and even rendering engine specific) code from the browser related code. This release of the plugin allows  run-time loading of different application cores at the web page opening, so allowing the same installed plugin to brows pages that require completely different application codes. The code is released as GPL for the part (shell) that links with the browsers code and LGPL for the cores that link against OSG. This kind of licensing should allow anyone to use for developing Open or Closed source web app (cores) that can be dynamically loaded by the common open source Browser plugin (shell). The GPL licensing of this component is intended to promote sharing of the infrastructure code.