Google is one of the most visited websites on the Internet. This means that writing content that Google will love is essential when writing for the web. That is, if you want anyone to read what you write.
Individuals use Google in particular because it helps them find information that is relevant to what they are searching for. While other search engines do this as well, Google's simple design has made it especially popular. That does not mean you should not use other search engines as many engines use similar search algorithms and the same tips can be utilized across all of them.