Put some text in the readme file.

examples/README.txt

-OpenMM Example programs
+----------------------------------------------------------------
+OpenMM(tm) Example programs and prototype C and Fortran wrappers
+June, 2009
+----------------------------------------------------------------
+
+These simple "hello world" examples were developed by
+Christopher Bruns and Michael Sherman for the OpenMM
+workshop on June 24, 2009 at Stanford.
+
+There are also two sets of prototype wrappers to enable C
+and Fortran 95 to call the OpenMM API. However, even if
+your calling code is in C or Fortran, please consider instead
+writing your OpenMM-calling routines in C++, using 'extern "C"'
+so that your main program can call them. If that isn't feasible
+for you, try out our prototype wrappers and let us know what
+troubles or better ideas you have.
+
+HelloArgon (C++, C, Fortran 95)
+-------------------------------
+
+This is the simplest example we could come up with that
+does anything interesting. It is three argon atoms interacting
+in a vacuum via van der Waals forces. It is primarily so you can
+check that you are able to compile, link, and run correctly with
+OpenMM. You will also get a many-frame pdb file generated
+which you can view as an animation in VMD or most other
+molecular viewers.
+
+HelloSodiumChloride (C++, C, Fortran 95)
+----------------------------------------
+
+This example shows how we recommend using OpenMM so that you
+can call it from an existing Molecular Dynamics code with
+minimal disruption. The example contains Coulomb and van der 
+Waals interactions and implicit solvation in a constant temperature simulation.
+
+HelloEthane (C++ only)
+----------------------
+
+This example shows how to convey bond information to 
+OpenMM. It is organized similarly to HelloSodiumChloride.
+
+HelloWaterBox (C++ only)
+------------------------
+
+This example shows use of explicit solvent in a periodic box.
+It is organized like the previous two.
+
+
+C Wrapper
+---------
+
+This consists of two files:
+    OpenMM_CWrapper.h
+    OpenMM_CWrapper.cpp
+
+Your C code (and the C examples above) include the header file
+and link with OpenMM_CWrapper.o along with the OpenMM library.
+Consult the code or the example programs to figure out how
+to use the wrappers; they are for the most part a very 
+straightforward rehashing of the well-documented OpenMM C++
+API.
+
+Fortran Wrapper
+---------------
+
+The file that defines the OpenMM module is:
+     OpenMM_Module.f90
+
+This consists of a Fortran '95 Module "OpenMM" so that your
+Fortran program units have "use OpenMM" statements. You will
+need access to the OpenMM*.mod files generated for the modules,
+and you must also link with the OpenMM_CWrapper.o as described
+above for C. That's because the C Wrapper also provides bindings
+that treat arguments in a manner appropriate to Fortran, and 
+the Fortran Module describes those rather than attempting to
+match the C or C++ signatures.
+
+
+
+
+
+
+
+
 
-TBD
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