One doesn’t have to be a history buff to say that search engines have been around for as long as we have known the internet. With many names and algorithms over the year, search engines have evolved so much that they can be considered the backbone of the whole online marketing landscape. More than 80 percent of the visitors on your website might come from search engines. They may not know you previously, but all they need to do is to type whatever it is they are looking for and a whole array of results shows us before they can even press a key.