To the flip side, they may also pull up unrelated information for the topics you're searching for. Search engines, such as HotBot, create their listings automatically. Search engines crawl the web, then people search through what they have found. If you change your web pages, search engines eventually find these changes, and that can affect how you are listed. Page titles, body copy and other elements all play a role.
Some search engines maintain an associated directory.
Being included in a search engine's directory is usually a combination of luck and quality. Reviewers often keep an eye on sites submitted to announcement places, then choose to add those that look appealing. Engines and directories often times bring irrelevant pages into the results, meaning it may take a while longer and more investigation to find what you're looking for. Overall, search engines do a tremendous job in pulling up relevant information, and getting your site listed in the top of these engines can mean tremendous results for your site. Search engines don't have the ability to ask questions, so they rely on what you've entered for your search.