Fortran 95 tutorials available online
Fortran (largely by Michael Metcalfe); especially section 2, "Langauge Features" http://en.wikipedia.org/wiki/Fortran
Michael Metcalf's Fortran 90 CNL Articles https://w3.pppl.gov/~hammett/comp/f90tut/f90.tut0.html
Fortran 90 for the Fortran 77 Programmer by Bo Einarsson and Yurij Shokin http://www.nsc.liu.se/~boein/f77to90/f77to90.html
Many useful links can be found at: https://dmoztools.net/Computers/Programming/Languages/Fortran/FAQs%2C_Help%2C_and_Tutorials/
of which this one looked rather helpful; PSTI RESEARCH LECTURE SERIES "SCIENTIFIC COMPUTING WITH FORTRAN 95" DR. VIKTOR K. DECYK http://fizyka.umk.pl/~jkob/x5dhf/trunk/docs/scf95.lect1.pdf
Above all.... Google on "fortran 95 tutorial" and you'll find every style and language under the sun!