What is Search Engine and how does it help to find business Online? What is a Search Engine? Well, A search engine is a software that helps people find the information they are looking for online using keywords. Well, the first search engine was a program called Archie, which debuted in 1990 and allowed people to access and search for filenames, which were essentially the names of web pages. But Archie can’t tell you what’s on those pages. After several decades, search engines like Google, Bing, Yahoo!, Ask.com, AOL, Baidu, and Yandex have come a long way. These search engines use extremely complex computer programs to sort through large numbers of web pages. How does a Search Engine work? Each search engine uses its own software, but its operations are quite similar. They all perform three tasks: First, they check the content they discover and are allowed to see (this is called crawling ). Second, they rank each piece of content (this is called indexing ). And third, they ...