This forum is full of information, most of it is reliable. You can start with the Prose or Poetic Eddas, the Nine Noble Truths (Virtues), Norse myths, or just google. There are many sites out there that do a decent job explaining the concepts.
Raven Kaldar (not sure I spelled it right) has some good books
DJ Conway's Norse Magick is an informative read
Freya Asywin is good as well
By: Personified Moderator / Knowledgeable Sep 07, 2013
Post # 3
I do not suggest reading DJ Conways book on Norse Magick if you're wanting to go about this in a traditional way. It is not based off factual traditions, and often is very new-agey in it's approach to Norse magick.
Raven Kaldera is a great source for Norse paganism, as he sort of formulated Northern tradition paganism (which relies heavily on Norse beliefs and concepts) and Northern tradition shamanism.