Some synthesizer links
Here are some links to other interesting synthesizer sites:
A very good starting point for modular synthesizers: http://www.modularsynth.com
All the old Moogs: http://www.moogarchives.com
Korg MS + PS series: http://www.korganalogue.net
All about vintage synths at Vintage Synth Explorer: http://www.vintagesynth.com/
And if that is not enough, Kevin Lightner has some excellent info at Synthfool
The best step sequencer you can imagine
Artists of interest: