Eriks
frimärken
Härnösands
Filatelistklubb
Posten Frimärken
Swedish postoffice
Postmuseum
SFU Swedish stamp
youth
SFF Swedish Filatelistic
society
Magnus Engstedt stampshop
Lars
E. Ohlson stampshop
Philea stampshop
Skillingtrycket stamp & postcard paper
Stamps
of Sweden
Joseph
Luft's Philatelic Resources on the Web links to foreign stampresources
a few Swedish.
On almost all of the above sites there is a button "in English" for you who don't speak Swedish.