What is a resource page without a book list? I have compiled a shortlist of books that have had a profound impact on my life. They all have played a huge role in the way that I look at the world.
If you want to posibbly create some new skills? I would recommend Skill Share
If you need a website (or 50 websites?!) this will be perfect for you!
If you are looking for an amazing resource for keyword research then this is for you!