These are two sites which have some good info.
The first is an Australian site with all kinds of info and the second
is for Regina chain with lots of info about chains

http://bikepoint.ninemsn.com.au/portal/tabID__5766/BikeTipType__tech/DesktopDefault.aspx

http://www.regina.it/oldregin/products/choose.htm

I also have a good article by a SV rider about riding techniques
but it's in MS Word and 33 pages.
If anyone wants I can e-mail it to them.