Dropbox is a useful cloud service for keeping all your photos synced between your computers and the cloud. Creating a shared folder on Dropbox is easy. There are 2 ways to create a shared Dropbox folder for your photos. You can create a shared folder from the Dropbox website. And, another way is, you can create a shared folder on your Windows or Mac OS X computer. Just add your photos which you want to share to a folder in Dropbox on your computer and then right-click the folder. Select 'Dropbox' option and then select 'Share This Folder' option. This will automatically take you to the Dropbox website to enter the email address of your friends that you want to share the folder. Click 'Share folder' button. After doing this, you will see a written 'Shared folder' in front of the photo folder.
You can install PicBackMan's Dropbox uploader for Mac from the website and start backing up photos and videos.