For instance, if you want to know about the death penalty in general, a directory is where you should start. As mentioned in Search Tools , COM Library has created a single page from which you can access some of the best directories, search engines and meta search engines on the Internet. Some robots only index the main page of an Internet site, and others index every page of every site they encounter. That is one of the reasons why an identical search performed on different search engines can find very different pages. Search engines are not always as easy to use as directories, but sometimes they can find sites that have not been indexed in a directory.
Search engines are usually better at finding very specific information .
Many search engines maintain separate pages for simple and advanced searches and now include their own browsable directories. It can save you time. If you have ever searched the Internet, you know that most searches will pull up thousands of hits. Search engines have various means of ranking hits, and theoretically, the ones listed closer to the top of the list should be the closest matches to your search. The reality is that if you aren't using options to make your search more precise, most of the pages you pull up probably won't be very useful and some will be totally irrelevant.