Here is Duane Ausherman's web site. This link goes to an especially good article on changing tires, but there are lots of other goodies also.
is a site devoted primarily to the sport K bikes, but also has some content of interest to RT and Light Truck owners.
Here is a good article on the need for installing headlight relays, and how to go about it. Also has a good article on installing heated grips, and another on making your own heated grips.
has an interesting article on installing an extra fuse box.
Here is an interesting article by Adam Glass on tire changing at home.