Microsoft, Google expand search-engine tools

Say you're buying a dog. You know the breed you want; you can picture it in your head. But what was the name? A bull terrier? A pit bull? A bull mastiff? Or what if you're in the market for a new camera You saw a friend with a credit-card-thin model at a party last weekend. But was that a Canon A Nikon A brand you've never heard of If you're like many people, you'd turn to the Internet for ...