Get a Beta Invite to Dropbox and Sync, Share, and Back Up Your Files

Not to be confused with file-sharing service Drop.io, similarly named Dropbox lets you back up, sync, and share files. It's an invitation-only beta for the moment, but Business Hacks has scored 250 invitations so you can get started without waiting in line!

A free account affords you 2GB of online storage you can use for backing up and sharing files. Even better, the Dropbox desktop utility makes it a cinch to sync files between multiple PCs. If that sounds a little like Microsoft's Windows Live FolderShare, that's because the two are quite similar. However, Dropbox is also compatible with Macs, and you can easily sync across platforms. It's also very similar to SugarSync, but that service doesn't offer a free account (only a free 45-day trial).

Dropbox will offer premium accounts in the future for those needing more than 2GB of storage. In the meantime, get your beta invitation and start using Dropbox immediately.