Forest Garden Growers
A good discussion group on Facebook that is growing fast.
Organizes various courses in forest gardening in Skåne, even at half the distance.
Forest garden's friends' website that contains information about Sweden's most famous woodland garden Holma in Skåne. On the page you can also find Esbjön Wandts diploma work which contains a lot of interesting ideas about forest gardens.
Growth is a Stockholm-based movement that seems more culture in the city, on the basis that the only sustainable growth is the biological. The group has planted a forest garden in Rågsved which is well worth a visit and the initiators of the growth is also behind forest garden at Stockholm University.
Databasen Plats for a Future (PFAF) is an incredibly extensive plant database with descriptions of over 6000 useful plants. I use it very often to get the basic knowledge of a plant that I do not know about yet. Unfortunately they had some financial problems lately, but if you think that is good, please donate some money to them!