Google Dorks

site:http://s3.amazonaws.com intitle:index.of.bucket
site:http://amazonaws.com inurl:".s3.amazonaws.com/"
site:.s3.amazonaws.com "Company"
intitle:index.of.bucket
site:http://s3.amazonaws.com intitle:Bucket loading
site:*.amazonaws.com inurl:index.html

site:blob.core.windows.net intitle:"index of" "companyname"

site:storage.googleapis.com intitle:"index of" "companyname"