Dropbox, the very popular cloud file/sync/backup/sharing service, has announced some new features, including document preview and photo sharing and sorting.
You can preview PDF, DOC, DOCX, and PPT files by double-clicking on them. This way, you can see if that is the file you want, or even view what you need, without downloading it.
Dropbox has also added some features for photos. When you click on "Camera" you will see all of the photos you have uploaded from your phone. You can then group them, email them, or share to Facebook and Twitter.
Some more great features from a great service.
Lots of Great File Sync/Backup/Share services
JustBeamIt file sharing service comes in very handy - also has links to more file sharing services
Let's Crate - easy, free, file sharing
minus - file sharing service
eBackpack - educational file sharing and backup
YouSendIt - easy file sharing, sync, and sign