The non-official Linux port of the official Flickr Uploadr.
Flickr Uploadr 3.0 is the new best way to get your photos on Flickr. With it you can quickly import your photos to Flickr.
It features a powerful offline mode allowing you to prepare your photos for uploading (arrange, rename, describe, resize and rotate) without requiring any network connectivity.
Also, all photos uploads are done in the background using a queuing system, allowing you to work on other photos while it's uploading.