Here are some links that we think might be of interest:
J S Bach homepage
G F Händel homepage
Bach Cantatas Website
SAMI, Swedish Artist's and Musician's Organisation
Swedish Association for Choral Singing
The Drottningholm Baroque Ensemble
Barockorkestern, Stockholm
Stockholm Baroque Orchestra
The Berwald Hall, Stockholm
Gävle Concert Hall
The Concert Hall, Stockholm
SUNET:s list of swedish choirs with homepages