Bloom uploader - Bloom is the best Facebook photo Uploader
55Photos - 55Photos is a web application that lets you view, edit, manage, organize, transfer, download, upload, backup all your online photos and albums from one place.
Mylio - Photo organization and protection, using peer-to-peer to keep all your photos available an all your...
PicBackMan - PicBackMan is an effortless photo & video uploader for Flickr, Picasa, SmugMug, Facebook, Dropbox, Box, Skydrive & Google Drive.
Bulkr - The complete solution to backup, download and browse photos, videos on Flickr. Download sets (albums), favorites, groups, explore photos & more on Mac or Windows
Pixaver - Pixaver automagically backs up your Google Photos library, giving you some extra peace-of-mind.