Earthdog events are go-to-ground trials for certain small Terriers and Dachshunds.

Online stores specializing in weight pulling supplies and equipment for dogs.

Agility involves the use of a number of specific and standardised jumps and obstacles.

Online stores featuring products for dog sports, competition, recreation, and work, such as flyball, show and obedience competion, hiking, herding, weight pulling, and lure coursing.

Toys may be used to train or entertain dogs.

Sites that primarily feature products for dog-related cleaning of household surfaces, including preventative products.

This category is for manufacturers of food products normally used to feed dogs and cats.

This category explores foods that are toxic to dogs. This category is for informational sites only, though sites which sell a product and also contain significant educational material will be considered.

This category includes information on use and importance of vitamins and minerals in dogs.

This category includes information on dog food and food supplements (including, vitamins, minerals, herbs, etc.), as well as feeding practices.