Don't research log cabin or rail fence out on the internet because you will mostly get just pictures. Search it here. If you put in log cabin in the search here, you will get a list. On the left side of that list it tells you what section that particular post is in. If you see one under tutorials - there you go.
I think there's a tutorial section here too. Go straight there and find tutorials on what you want to make. You can also peruse magazines and find something that will suit the fabric you have.
You can also search for scrappy quilts