I've been immersed in reading about motorcycles lately - magazines, books and online.
These are some of the links I've bookmarked.
General Interest -
Adventure Rider Motorcycle Forum
MicaPeak dot com
Sportster / HD Specific -
The International Portal for Sportster and Buell Motorcycle Enthusiasts
The Sportster Home Page
Home Page - Sound Harley
Washington Motorcycle Dealer - Eastside Harley-Davidson
Harley Davidson Maintenance - Harley Davidson maintenance tips and advice.
How to change transmission oil in a sportster
Poor Man's Sportster Service Maintenance Guide
Self Help Information and Tips - Harley Davidson Community
YouTube - Harley Davidson Motorcycles : How to Do an Oil Change on a Harley Davidson Sportster
The most interesting link for me right now is the first one - Adventure Rider Motorcycle Forum. It has stories from a guy who rode a Harley hard-tail chopper around the world The WRONG Way Round.... on a Chopper! - ADVrider and one about a young man who rode a moped from Australia to London Sydney to London on a moped called Dot - ADVrider
Nothing new about boys wanting to have a motorcycle adventure as you can see from these early 1900's Online Books at MicaPeak dot com. I haven't read them but they look amusing and it's interesting to think about what young men in 1906 were reading.
MicaPeak dot com also has Motorcycle Registries where owners leave their impressions of motorcycles they own or have owned.
Horizons Unlimited looks like a good site if you want to ride your motorcycle across the Sahara Desert or something like that.