Search engines explained
Every day search engines send out small spiders or bots as they are sometimes known to millions of different websites and blogs on the internet. As they search around the content of the website, they send information back to the search engine that get stores in a database.
Everytime you enter your keyword, phrase or term into the search engine, it brings back results from its database. How the search engine decides what information to bring back is a closely guarded secret as they often don't want their competitors to know how its done.
Search engine advancements
Search engines have evolved beyond simple text based searches. It now includes searches for images, videos, maps, answers to questions and even products. The features within search engine results have also evolved in recent years. In many you can now see a preview of the website you might be about to click on, you can see whether the link is safe and free from malware. Some search engines even embed real-time results from social networking websites.
Back to basics
Although serach engines have evolved, the basic concept remains very simple. Find the best results, with the minimum of effort. All of the top four serach engines that dominate the market have kept with the single, yet elegantly simple search box. Most of the advancements in search engines are kept hidden away, but if you feel the results you are getting are still relevent then you know the search engines are still evolving.