The Mother of all gardening web sites! It features hundreds of links to sites on just about anything a gardener could want.
Also, check out the Virtual gardening library
The Web site of the Minnesota State Horticultural Society.
Is arranged by Dewey Decimal number; the gardening section (in the 635's, naturally) has links to useful information and other good sites.
An easy-to-use site especially useful for Minnesota gardeners.
Has links to sites about gardening, decorating, collecting, crafts, entertaining, "frugal living" and much more. It is maintained by a "guide", and is updated frequently.
This environment-friendly site teaches us what to throw and what to buy, including links to local information on re-using and recycling.
Features articles on remodeling, decorating, gardening, cooking and many other topics. Frequently updated, it has a nice variety of information.
Offers instructions on household repairs like replacing doorknobs, as well as larger projects, such as improving yard drainage.
Has instructions on accomplishing all sorts of household projects and tasks, from "identifying mysterious stains" to "when your freezer stops working."
Has a nice "library" of do-it-yourself projects, with instructions, home safety tips, and answers to common home improvement problems, e.g. the "paint problem solver."