Resources Continued...
Historical Oil Painting [Free]
http://www.getty.edu/conservation/publications_resources/pdf_publications/pdf/historical_paintings.pdf
An interesting resource, it has lots of originals and close-ups of different popular works. There are also some passing references to early working materials. Not a complete study, but a nice stepping post towards a full study.
100 FREE Art Books [Free]
http://www.goldcoastartclasses.com/100-best-free-art-e-books.html
I've just started digging through this, and I will be saving the works as I suggest you do. There are many books listed here that I can attest are very good.
The Painter In Oil [Free]
http://www.storytellerartist.com/documents/Painter_in_Oil.pdf
Another great resources for oil painters.
Empty Easel [List]
http://emptyeasel.com/
This is a huge website of resources for the budding an experienced artist. Time is well spent here.
Art Show [List]
http://www.artshow.com/resources/drawing.html
Another great list of resources. Some links don't seem to be working, but the ones that do provide solid advice.