Thanks to :

Rails Tutorial

These may not be suited for a total beginner (and aren't free), but are certainly resources I recommend for someone who wishes to deepen their Ruby and Rails knowledge.

Also, the already cited Rails Tutorial is great for someone just starting.

• Eloquent Ruby
• Ruby Under a Microscope
• The Complete Guide to Rails Performance

These two books were the foundation of my Ruby Education:

The Well Grounded Rubyist by David A Black
Practical Object Oriented Design by Sandi Metz

WGR gave me the basics of the language and a working knowledge the Ruby Standard Library.
POODR taught me what Object Oriented Programming was and how two write Ruby.

Eloquent Ruby by Russ Olsen is a excellent read as well and will help you write idiomatic Ruby.

For an absolute beginner in the world of Ruby on Rails, there's always Learn Ruby the Hard Way.

IMHO these are perfect for a coffee break:

• Railscasts ... even though a little outdated
• GoRails

thoughtbot.com/upcase

No one has mentioned Upcase yet! It's a learning platform by Thoughtbot that has just recently gone free.

They have a Weekly Iteration which is like 20 mins bite size videos that I watch every now and then.

I also do their Trails (which are like longer, series of course), some of them being Test Driven, Foundations of Testing etc during weekends!

The testing bits really helped me a bunch :)

I don't think they're highly actively maintained anymore but it's still a great library of resources nonetheless!

I can't emphasize this enough: Learn Ruby before you dive into Rails. Your Rails journey will be so much easier that way.

I like launchschool - launchschool.com/ and their books - launchschool.com/books.
The Odin Project - theodinproject.com/
Free online course Agile Development Using Ruby on Rails - The Basics - edx.org/course/agile-development-u...

Let's Build: With Ruby On Rails - web-crunch.com/series/

This series is all about Ruby on Rails. We’ll be building apps and furthering our knowledge of the framework discussing topics such as MVC patterns, CRUD, databases, migrations, generators, stylesheets, ruby, rails, javascript, and much more.

You're missing the most-up-date Rails screencasts on the block: Semicolon&Sons

The focus is on production web-apps. Instead of toy examples, the screencasts are situated inside a live codebase with a decade of legacy, hundreds of thousands of monthly sessions, and tens of thousands of monthly revenue -- and all the complications that accompany all this.

They are certainly not beginner screencasts, but are there to help people fill in the gaps when they are responsible for a deployed piece of software (ESPECIALLY if they are indie-hackers).

Things like architecture, non-brittle integration testing, data integrity enforced at an SQL level, monitoring and responding to production issues, integrating JS without fad frameworks, auditing gems and JS dependencies, softer stuff like SEO for programmers, etc.

You can check out the kind of content we’ve got here: semicolonandsons.com/series/Inside...

You can checkout Mindmajiix's Ruby On Rails Training it would be the best resource for you to learn