Flickr is a photo and video sharing service by Yahoo. It allows you to backup photos and videos, organize, edit and share them to social networking sites. By using Flickr's batch organization and sharing feature, you can share your photos directly from Flickr to Facebook, Twitter and Tumblr. Flickr has a powerful search tool which helps you to get your photos faster, even if you have thousands of photos. Flickr understands your photo's date, time, place, scenes, objects which is helpful to organize your photos.
You can install PicBackMan's Flickr uploader for Mac from the website and start backing up photos and videos.
PicBackMan is a free photo/video uploader that helps you to keep your memories backed up to your favorite online services.
Users in 130+ countries have backed up.
... an excellent job of uploading more then 300GB of photos to 2 different services