ARTISTS' SITES:

Krzysztof Radomski @ Mikseri.net - my artist's page on mikseri. Contains most of my online tracks.

Krzysztof Radomski @ Archive.org - collection of my free albums on archive.org.

Mark Vera,  Digitalvoice - music pages of very talented Fin, Jouni Airaksinen.

Dreamtime,  QSO - music pages of Lauri Turjansalo, another talented artist from Finland.

Marco Rochowski,  Marco @ mikseri - Homepage and music site of Marco Rochowski. Check out his awesome spacesynth!

Energon - Marco Rochowski's and Jouni Airaksinen's fusion.

Galaxion - nice synthdance from Antti Hakala.

SPACESYNTH MUSIC RELATED SITES:

Spacesynth.net - the biggest resource about spacesynth music over the net.

Spacesynth.de - the one of the first pages about Spacesynth music. Rarely updated yet, but there's a lot of free music to download.

Yahoo - spacesynth - discussion group concerning Space music. Noone's posting there ATM, but consider it as an archive.

OTHER INTERESTING SITES:

Encyclopedia Of Electronic Music - an awesome effort made by Artemi Pugachov to collect all electronic (except dancey electronica) musicians in the world. Constains some really impressive amount of info about a lot of artists. Recommended.

Psytrance.pl - the best polish site about Goa and Psytrance

Also don't hesitate to visit official spacesynth channel on IRCnet (#spacesynth), where you might have a chance to talk with fans and synthdance artists.