FlickrSync

Codeplex

FlickrSync is a freeware photo synchronization application for flickr users. It displays your local folders and your flickr sets and it can establish synchronization rules between them. This way you can manage all your photos locally and FlickrSync will keep them updated in flickr. Synchronization is only done one way: Your local folders or images are never changed; Everything is updated in flickr to match your local information.