Search engines - Smart spiders

Are your search engine results more confusing than your query? While most o f the Web's search engines still bring back a lot of nonsense, a few have s marter spiders-software that combs the Web and brings back relevant results . In some cases, the spider will bring back just one result and hope it's w hat you want. In other cases, you can narrow your search to get better resu lts. Some even let you create your own search engine to scour the Web accor ding to your preferences.