- Computational Chemistry Comparison and Benchmark Database - Compares experimental properties of small gas phase molecules with properties computed using a variety of ab initio methods.
- Gaussian Basis Set - Free download of many basis sets in different formats.
- hBar Lab - Web-based service, where users pay to be provided with calculations of molecular properties such as ionization energy or geometry of a target molecule.
- Introduction to Relativistic Quantum Chemistry - Lecture notes for a course taught at the University of Helsinki.
- Linear Scaling Electronic Structure Methods - Lecture notes from a 2002 conference sponsored by the Institute for Pure and Applied Mathematics at the University of California, Los Angeles.
- NWChem - Software for electronic structure calculation and molecular dynamics simulations. Includes documentation, information on how to obtain the software, and tutorials.
- Simplified Introduction to Ab Initio Basis Sets. Terms and Notation - An article by Jan K. Labanowski.
