Alternatives to rails guides

[CouchofTomato]

From the discussion this seems like the easiest win because no new content needs to be produced. Can we all please have a look through the rails curriculum at the links to rails guides and see if maybe any of us have some great alternatives in our bookmarks or know of any places to look?

Post here with the link and which part of the rails guide it can replace and we can discuss and I'll collect them at the top and we can choose which ones work best in the curriculum.