As the size of hard drive is double in every two years , computers users and business storing huge amount of data in their computers , laptops and storage devices. what if data storage device is crashed or stolen ? To handle these type of situation online data storage becomes very handy and cost effective. There are many online data storage services available and it is not possible for me to write about these services in a single post so i am starting series of online data storage services.
According to wikipedia
A remote, online, or managed backup service is a service that provides users with an online system for backing up and storing computer files. Online backup providers are companies that provide this type of service.
Online backup systems are typically built around a client software program that runs on a schedule, typically once a day. This program collects, compresses, encrypts, and transfers the data to the remote backup service provider’s servers. Other types of product are also available in the market, such as remote continuous data protection (CDP).
eSnips provides 5 GB of free online storage. Here you can not store files but you can also share Your thoughts,Files and documents,Pictures and photos, Video, Music and voice, Entire folders ,Snippets from the web ,Entire web pages ,Links And even create your own voice & video content online.eSnips allows you to create folders to organize files and helps to decide which folder to keep private, which to share with a select group, and which to publish and share with the world. eSnips is not just for storing file online but it also allows you to promote your business by setting up marketplace at esnips.com. 
The eSnips Uploader is the quickest way to upload files, record and publish audio and video, and save web snippets and pages. The Uploader also includes a Toolbar you can use in a bunch of cool ways.
Mozy offers 2 GB of free data storage. If you need more space to store then you can go for MozyPro option ,in that you get unlimited storage. One interesting Mozy offer is Automatic or scheduled backup, just tell MozyPro when to perform your backups. Automatic is the simplest method in which backups are performed while your computer is not in use. Scheduled backups can be performed daily or weekly at a specified time of day. All files are encrypted before sending to backup servers and can not be copied or downloaded by unauthorized users.
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I am using Mozy and it seems fantastic to me..