Another 100gb Cloud Storage account - from CNET review below.
If you're looking for free cloud storage, you probably know the popular options: 2GB from Dropbox, 5GB from Box and SugarSync, 7GB from SkyDrive, 15GB from Google Drive, and so on.
Of course, these services aren't really built with backup in mind, and even if they were, that's probably not enough free space to handle your archival needs.
California-based SurDoc raises the bar by offering 100GB of free cloud storage for one year. After that, you'll pay a very reasonable $30 annually to keep the space.
After signing up for your account (which requires only an e-mail address and password, no credit card), you'll download the SurDoc desktop client, which is available for Windows and Mac. (I tested the former.) I found this an admirably simple tool for choosing the folders you want to back up, a function SurDoc does continuously and in the background.
You can also choose any folder path for real-time, Dropbox-style syncing with your account. And SurDoc offers mobile apps for both Android and iOS, though you can also access and share your files via any Web browser (including mobile ones).
Another nice perk: You're not limited to a single PC. Your freebie account lets you back up from unlimited machines. As for file sharing, it works much the way it does with other services: SurDoc generates a link you can copy and paste, but also has one-click options for sharing via e-mail, Facebook, Twitter, and so on.
If 100GB somehow isn't enough space, SurDoc will give you even more for referring friends (10GB per) and sharing files (1GB each).
I suppose the concern with any cloud-storage service is longevity: Will SurDoc even be around for a year? The company is not quite two years old, having secured some $4 million in venture-capital funding from IDG Ventures back in late 2011. That's no guarantee of anything, of course, so you'll have to decide whether it's worth trusting your data to a relative unknown.
fine print from site
Includes all files that you can print or play, such as Microsoft® Office documents (.doc, *.ppt, *.xls, etc.), PDFs, code like HTML, text (.txt) documents, JPEGs and other photos/image files, music files, and video files. For 100GB free accounts there is a 5GB (10MB maximum individual file size) limit on storage of “special files.” For unlimited docs accounts there is a 100GB (100MB maximum individual file size) limit on storage of “special files.” “Special files” include files like executable binaries, database dumps, etc. Purchase additional 100GB plans for more ‘special file’ storage.
Earn up to 1TB of permanently FREE storage when you REFER FRIENDS! See inside your SurDoc account for details.
My referrer: https://www.surdoc.com/inviteFriendsActive/?inviteCode=883e9…
not sure if it works because I removed my email address from the URL but you can try if you like.
100GB FREE for 1st YEAR ONLY then $2.50/mo additional years or earn more free (not sure how you earn, probably by referring friends)