The JEM network collects together leading European universities and companies which have high-quality special knowledge and experience in digital content in mathematics. A quick inventory of the digital content within the network shows that all partners qualify as stakeholders for eContent in mathematics, statistics, and theoretical physics. The following list illustrates the quality and volume of the content owned by some of the partners of this proposal:

• Algebra Interactive by H. Cuypers, H. Sterk and A. Cohen: Pioneering e-book in basic mathematics.
• A full two semester on-line course in calculus (available in English and in Spanish) of M. Seppälä: Over 110 000 downloads of lectures in 2005 (by November 22). Collection of PowerPoint Slideshows, available also as pdf files, and Maple worksheets.
• Self-study materials in Classical Geometry by S. Xambó: Available in Catalan over the FME/UPC intranet, English version to be published in 2007.
• A collection of advanced problem templates in calculus and in algebra: These problems use the system STACK . Copyright University of Birmingham. Chris Sangwin, a partner of this proposal, is the key developer of STACK.
• Self-assessment system, in German, for two courses in linear algebra based on the flashcard concept: Copyright FernUniversität Hagen. The flashcard concept has turned out to be very successful.
• Descriptive Statistics of Udo Kamps: On-line materials for different usages of learning and teaching, e.g., self-study and exploratory learning. This is an extensive collection of materials in statistics, and is accompanied by several other statistics and probability theory on-line courses by the same author. These on-line materials have been produced by the support of the EMILeA Project .
• Calculus Lecture Notes (in Portuguese) by J. F. Rodrigues and P. Duarte.
• Web-based course in Complex Numbers and Functions (available in Spanish and in Catalan). By M. A. Huertas, A. Gomà and C. Córcoles (UOC): interactive examples, activities and exercises by using the calculator Wiris (on-line). The Catalan version has also auditions of the main introduced formulas. This web page material uses MathML 2.0; by now the best option to use this material is to use the last version of the browser Mozilla Firefox, and these typographies (in particular, for Windows, the typographies file to unload is here).

All universities involved in the proposal typically have collections of examinations, homework problems, and lecture notes of all the basic courses in an electronic form, mostly produced in LaTeX. Many partners of this network also have extensive collections of interactive content powered by computer algebra systems like Wiris, MapleTA, or Java illustrations of mathematical content. Liguori Editore has, in addition to the above list, a full line of commercial on-line books and other publications. Some of the content is open source and will remain as such. Some of the freely available content will be used to build commercial applications based on offering services such as multilingual adaptive problem databases with solutions.