Useful for advertisers. If you have amazon.com open that good to know. But if you have amazon.com, sears.com, and appliances.com, then I know you are actively r

Useful for advertisers. If you have amazon.com open that good to know. But if you have amazon.com, sears.com, and appliances.com, then I know you are actively researching major appliances and I need to advertise my brand to you ASAP.