Mathematical Software
- UIC Computer Center (ACCC)
- SAGE: Open source mathematics software
- Pari (Number Theory/Algebra)
- Computop (Topology)
- Macaulay 2 (Algebra - UIUC)
- Iode (Diff Eq - UIUC)
- The Geometry Center (Geometry - UIUC)
- Interactive Real Analysis
- MATLAB Help and Online Manuals
- Wolfram Research (Mathematica)
- MIT Media Lab
- TeX Users Group (TUG)
- teTeX Homepage
- teTeX for OS X
- HyperTeX archive (Arxiv)