International Mathematical Organizations

• European Mathematical Society
• American Mathematical Society
• The Mathematical Assosiation of America
• Societe Mathematique de France
• London Mathematical Society
• Society for Industrial and Applied Mathematics (SIAM)

  Mathematical Networks

• MathSciNet Homepage (Mathematical Reviews)
• Approximation Theory Network
• Numerical Analysis Network (NA-net)
• TAMU Center for Approximation Theory
• SIAM Activity Group on Orthogonal Polynomials and Special Functions
• Mathematical Resourses on the Web
• Math Database (Zentralblatt Math.1931 - )

  Mathematical Journals

• Journal of Approximation Theory
• Constructive Approximation
• East Journal of Approximation
• Journal of Computational and Applied Mathematics
• Ukrainian Mathematical Journal

  Mathematical Institutions

• Steklov Mathematical Institute of RAS (Moscow)
• Keldysh Institute of Applied Mathematics of RAS (Moscow)
• Euler International Mathematical Institute (StPeterburg)
• Centre de Physique Theorique (Marseille)

  Mathematical Libraries

• International Digital Electronic Library (IDEAL)
• Mathematics Virtual Library

  International Scientific Foundations

• INTAS
• National Science Foundation
• NATO Science Programme
• Civilian Research and Development Foundation (CRDF)
• International Renaissance Foundation