Online Storage and Backup

I tried multiple tools and web sites for online storage. Dropbox is the best one I have found.

It synchronizes your files online, and keeps versions for 30 days (the paid version keeps unlimited history of versions and deleted files). It is extremely easy to use: After installation it creates a Dropbox folder. Just copy any files you want to that folder, and they are synchronized. You don’t need to change anything, just change the folder name you use. Their iPhone application is also very nice. Furthermore, the fact that they keep your data encrypted with your password on Amazon S3 servers sounds like a good reason to trust them.

The default is 2GB free space if you join on
http://www.getdropbox.com/
If you join through an invitation, you get extra 250MB. I have multiple invitations. Just drop a comment and specify a way to reach you (e.g., twitter DM) and I can send you the invitation. I'll check it often, so you should get the invitation soon.

Windows and Mac versions are easy to install. Linux version is also easy if you have root access. For using it under linux with no root access, download it from (or find a newer build in the forums):

http://forums.getdropbox.com/topic.php?id=12922&replies=67#post-81845
Unzip, untar and run
~/.dropbox-dist/dropbox