Hidden powers of Google

Google is a very powerful search engine , if you master all the types of querying techniques possible it becomes a very useful tool. For example here is a query string which can be used to search public web server directories.

Type the following text in google search box:

Index of .mp3

Google will return you a list of results. And clicking a result of type "Index of /mp3" will take you to a folder called mp3 with .mp3 files. You can play with the search string to get all different kinds of information on the content of the public directories.