There have been tremendous advances in bicycle headlights...
Generator choices and installation
Don't be fooled, reflectors are not enough!
Which is better for bicycle lighting...lead-acid or nickel-cadmium rechargeables? -- a historical question though the advice on avoiding damage through overchagring still applies for some battery applications.
Dynohubs are electrical generators built into special bicycle hubs. They were made by Sturmey-Archer in England for several decades, and new models are now being offered. Similar hubs are currently made by other manufacturers -- see "Generators", above.
NiteRider News (dated information) by Marty Goodman
The NightRider XCL Pro (a.k.a. Digital Pro 12), state of the art in 1997
Development of different types of lamps
A couple of high-end bicycle lights from around 1997.
Don't let cold weather stop you.
Avoiding the "skunk stripe" up your back.
How to keep your bike safe without carrying un-necessary weight
An encyclopedic listing of bicycle lore, technical data and opinions
Lots of good info for the would-be bicycle commuter
Extensive "how to" site for the bicycle commuter
Last Updated: by Harriet Fell