Since I am a "Book Person" more than a website person. I would suggest anyone who wants to learn to save money to read Carla Emery's book
"The Encyclopedia of Country Living" but, she does have a lot of links to websites in the book, some are outdated, but most of them work.
In this book she gives a lot of ideas on how you can save money from making a list of all your purchases you need to make at the store to how to save money on by making your own feed for your animals.
I always refer to this book at least once a week if not more. It has a lot of "old timey" recipes in it, some for Vegans and some for the rest of the world.
I also own the "Foxfire" series, without the cookbooks. I am looking into buying them to complete the set.
I figure that when the real Depression hits us again, and we all can't afford to burn our lights, if we even have any electricity, I can always read my books again and again, much like reading the Bible.
...and may the Lord bless us, with all we need. AMEN