Originally Posted by Apoorva
There are strong and better search engines are existing in the internet world, but people are so use-to of Google that they don't want to switch to other one. Google is not only the combination of huge database and accurate results but it is having credibility and goodwill among the users and website owners which is not so easy to achieve.
I am not so sure about the goodwill among website owners
but I take your point that they would be hard to shift from the top spot. Either someone would have to come up with something different(and have huge financial resources) or Google will have to make mistakes that turn people away from them.