1. It keeps things simple. Look at it's landing page, little is spent on expensive graphics. 2. It's fast. I find Google much faster than other search engines in returning search results. Because it's faster I'm more likely to use it. 3. It's flexible. Google is highly customisable, you can change the background image. You can also search exclusively for images or text. 4. It's search results are of a higher standard. Compared with Yahoo and even bing, Google often comes up with highly tailored search results and less duplicate content.
I watched a program called "The Digital Revolution" on the BBC recently, it's part 3 you need to watch, it spends an entire hour on Google and why it is successful. Maybe worth a watch.
6. It is often able to determine the quality of the content of a website more efficiently than any competitor, in very short time. This happened to us many times - we were offering great content for our niche and we were rewarded even though the website was young. Thousands of users could find information that was missing anywhere else on the web. Bing and Yahoo have yet to index the website properly.
Google opened the door to the information revolution for every person with access to a computer. Then they figured out a way to track searches in order to deliver insight. Information is one thing. Insight is another.
another good documentary to watch would be Inside the Mind of Google. http://www.cnbc.com/id/33831099
Reasons apart, Google is the first ever search engine, which satisfies all the internet maniacs and surfers.
Google is more proficient in finding the right websites. Their searching technique can offer better results than any other. So i opt for Google instead of any other.
It's the first Good one. If another good one come, and have HUGE improve than Google, I will change overnight.
The way they started integrating twitter and a few other social networks will only add to their success.
I think the most important feature of Google is speed of this search engine for searching and indexing pages. Also its very easy to use for people. And the other reason is when people use of something, they will not leave it easily