There are many ways and tools to hide or protect important data on a USB Flash Drive.However a simple format of the USB Flash Drive can erase the important data.
Using Fbinst, a hidden partition can be created to store important data.This hidden partition stays even after formatting the USB Flash Drive.

Transcend JetFlash JF620 USB Flash Drives have a 11mb CDFS partition containing SecureDrive and other files.Many people do not want this CDFS partition.Officially this CDFS partition cannot be removed or modified.However there is a way to remove or modify this CDFS partition.

Ubuntu and its derivatives can be installed directly from the hard disk using Grub4Dos boot loader and iso emulation.This procedure is faster and does not require any secondary media such as CD or USB Flash Drives.

BackWPup is an impressive Wordpress Plugin which Backups your Wordpress installation and saves it in various cloud storage services such as Dropbox,SugarSync,Google Storage,Amazon S3,Azure,Rackspace Cloud,Email and Ftp.

5 Free Services and Webapps to save or download files on the internet directly to your free cloud storage account like Dropbox,SugarSync etc.These services are useful when downloads are restricted or if the download speed is low.Downloading the same file from your cloud storage account is fast.