Useful information and links on Fortran can be found on Clive Page’s list of Fortran Resources. Including programs for converting older Fortran codes into the modern standard, and information about different Fortran compilers.
The Computing Service now run several Fortran90 courses, Please see: http://www-uxsup.csx.cam.ac.uk/courses
The computing services Fortran course is based on notes by Dr. J. S. Morgan from the computing service of the University of Liverpool.
Also course notes on Scientific Programming.