When choosing how to backup, share, sync and access their data online users nowadays, consumers have quite a few choices. But if you want a service with proven security, reliability, mobile access and cross-platform availability, the choices narrow considerably. One of the services that fulfill all the criteria and also offer an unlimited amount of client installs with only one account is SpiderOak.

SpiderOak

SpiderOak provides an easy, secure and consolidated free online backup, sync, sharing, access and storage solution for Windows, Mac OS X, and Linux (supports Ubuntu, Debian, Fedora & openSUSE) with up to 7GB free for life. Upon sign up, user will get 2GB free as base, and earn additional GB through friend referrals. Still not enough? Storage upgrades is available at less than $10 per 100GB. SpiderOak offer a very competitive service when compared to other solutions such as DropBox, iDrive and SugarSync for example.

The installation and registration is simple, and users have the choice between using a simplified or advanced backup process. SpiderOak provides multitude of advanced features such as client password protection, bandwidth throttling, scheduling and many other. SpiderOak also offer one of the only services with a true zero-knowledge storage environment that combined with client-side encryption key creation and dual encryption layers to ensure that even employees of SpiderOak cannot decrypt or compromise user data even under, for example, government subpoena.

All in all SpiderOak offer a simple, secure and feature filled backup and sync service for both novice and advanced users regardless of operating system or budget. You can download the SpiderOak client for any operating system and sign-up to try out the service for free with 2GB complimentary storage for life at https://spideroak.com.

If you want more free space, My Digital Life has ten (10) SpiderOak Plus premium accounts with 100GB free storage space to giveaway, thanks to SpiderOak sponsoring in conjunction with the review. Each free 100GB SpiderOak premium account valid for 1 year, which otherwise costs $100 to subscribe.

To win one of 10 completely free 100GB 1-year premium accounts of the SpiderOak service, just leave a comment with a question or comment on SpiderOak or backup and sync in general. All comments must be posted on or before 23:59 PM on February 2, 2011, according to comment posted time (UTC+8). You can post as many meaningful comments as you like to increase your chance of winning.

A valid email address must be entered on the “Mail” field. Do not post email address inside comments to avoid spam. Winners will be receiving a promo code which can be used to upgrade the storage capacity by clicking the ‘buy more space’ button in the client for free.

Ten (10) winners will be selected randomly, with each entitled to one 100GB SpiderOak account lasts for one year. Each participant entitles to one account only.

Contest closed. Winners are Dave C, Kmcar67, kelly, Foxhunt, Cheru, Luke, SnickerHaHa, TecKnoGeeK, Sandeep Bussa and Nicholas.

My Digital Life’s decision is final, and My Digital Life reserves all rights to change any terms and conditions without prior notice. Do check out more free giveaways available at My Digital Life.