[Shad0w Warr10r]

Overall you have written an ok tutorial, but there are some problems.

1. An attacker do must certainly not find all their targets with google dorks.
2. If I did not know XSS I would not have been able to understand how this "attack" is performed.
3. You should state in the beginning that you expect your readers to know at least basic XSS to fully understand your tutorial.

You shall think about the ones that do not know as much as you. You are afterall teaching people who do not know it.

Done written there on the top.