The Norroena Society is a group focussed on the investigation of the ancestral traditions of Northern Europe as well as the promotion of their results and expansion of the Asatru faith. They publish articles, books, and videos.
Europagan encourages and aids the re-adoption of indigenous European religion, as a means of spiritual rejuvenation for Europe. Europagan offers historical and theological information as well as instruction for the practitioner.
The Wild Hunt is an online news outlet that deals with assorted news that is (nominally) pagan in nature. They give a broad overview of mainstream attention for paganism, just don’t expect in-depth information about paganism there.
Heathen gods is a website with a lot of information and resources about heathenry. It’s suited for people that are new to heathenry, but also offers a lot for people that have followed this path for a longer time.
Galdastafir is a website dedicated to the magic sigils by that name. The website offers stencils of staves to use in your own projects, and there are quite some medieval manuscripts available in pdf-files.