First let me say I’m not a big Fortran user but any blog posts about Fortran always seem to be very popular, and the Fortran on a Mac page is one of the most frequently read. I've just been sent details of another Fortran program and I've added it to the page.

Illustrate is a small Fortran program for creating non-photorealistic illustrations of molecules, with cartoony colors and outlines, and soft ambient shadows. It is used to create the RCSB Molecule of the month.