Sync your files online and across computers with Dropbox. 2GB account is free! (plus the extra .25GB using this link) http://db.tt/BHRhrXm
So what exactly is Dropbox?
Well it's the file synchronization/backup service that you have been thinking/dreaming about. The most basic use of Dropbox would have you install the Dropbox client on 2 computers and the contents of your Dropbox folder would synchronize automatically between them. No need to remember to upload or download the latest copy. No forgetting your thumbdrive, or forgetting to burn that file to CD/DVD. The latest version of your file will be on any computer attached to your account, automatically.
So what happens if you delete a file in your Dropbox, well it gets deleted from all the other computers on your account too. "OH NO" you say, "I accidentally deleted that file". No worries, the dropbox website has the ability to undelete your file, just login to the website, and find the deleted files link. "Well I have my file", you say, "but my cat apparently took up typing while I was out, and somehow saved over my doctoral thesis". No problem here either, dropbox keeps the revisions of you files so you can revert to an older copy, just go to the Dropbox website and click the little arrow next to your file and choose revisions. There you will see all the previous versions of your file.
If that was all there was to Dropbox, then it would be an amazing service, but there is more. Pictures, you have lots of pictures right? The kids, the pets, parties, whatever, well Dropbox can store these in folders in it's "Photos" folder, right click any folder in the Dropbox Photo folder and choose "View Gallery" and you'll see your pictures, click on one and it starts a slide show. Cool huh, but pictures are for sharing right? On the gallery page there is a URL (web address) that you can email or post on your website so other people can see the gallery and slide show too.
Then there are shared folders. Sharing can be done between dropbox users, right click a folder in your dropbox and choose share and you can then invite another user to share it. Each one of you can put files in the folder for each other, and you each have full access to the files. So you can each edit, delete, add files etc. The only thing to be aware of is that files in the shared folder count against the quota of all people sharing it. Does the person you want to share with not have a dropbox account? Invite them, you'll find invites in your account homepage on the left.
WOW, what a cool service, but wait, there is still one more thing. Want to share a file with anyone? Don't want to bother with them having a Dropbox account? Well then drop the file in your "Public Folder", then right click and choose "Copy Public URL". E-mail this link, or post it on your web page for people to use, no fuss to it.
So that's Dropbox, you've been dreaming about a service like this, one that makes it so easy you almost don't have to think about it.