These product categories, sold at chains such as Best Buy and Sears, which were the fourth and fifth retailers most threatened by showrooming, respectively, but less vulnerable than the home furnishings, pet supply and toy chains, according to the Placed survey.

FORBES: Why Bed Bath And Beyond, PetSmart Should Fear Showrooming More Than Best Buy

Four years ago, major crises overtook the spinach, toy, and pet food industries.

FORBES: A Survival Map in the Age of Product Recalls

Bandai, a Japanese toy company, made millions of dollars by transferring the precepts of pet-keeping to the electronic world with tamagotchi.

ECONOMIST: Mouse of Commons