Dropbox is a cloud storage service provided by Dropbox Inc. Dropbox offers 2GB of free storage space to backup photos, videos, files and important documents. There are many ways to earn extra Dropbox space. Referring friends to Dropbox can help you earn a maximum of 16 GB space (i.e. 500MB per friend). iOS users can earn upto1GB space by linking Dropbox to the iOS Mailbox account. Connecting your Facebook and Dropbox account can bag you extra 125MB storage space. Whereas inviting friends to Dropbox with a tweet can earn you 125MB of free storage space. You can earn some extra space by sending feedback about your Dropbox experience. However, if you are looking for a bigger storage space, then you can upgrade your account to a paid plan. Their Paid plans are as follows.
You can install PicBackMan's Dropbox uploader for Mac from the website and start backing up photos and videos.