Fortran

Fortran 90 for the Fortran 77 Programmer

Professional Programmer's Guide to Fortran77

Modular Programming with Fortran 90

Fortran 90 Tutorial [Another]

User Notes on FORTRAN Programming

Interactive Fortran 77 (PDF)

Fortran 77 Standard

Fortran 77 Tutorial [Mirror] [Mirror] [Mirror]

Numerical Recipes in Fortran 77 [Mirror]

Numerical Recipes in Fortran 90 [Mirror]

Using C and C++ with Fortran

http://shahid-tutesworld.blogspot.com/2006/06/fortran.html