Google Hack
For those that don’t know, the johnny.ihackstuff.com site is the site to see all those Google tricks that will get you in trouble. The recent Defcon conference found Johnny listing all of his favorite tricks. This is a must do for any sys admin for their URL.
PDF of presentation and tool on blackhat.com
Also, there has been a lot of news recently about searching for credit card numbers with Google’s number range search.
Search Google: visa+4356000000000000..4356999999999999
Here is the reference, but there are many.
Great stuff and good to check before someone else does 
Remember to use this information for Good only.
