A GNOME Flickr uploader
A nice flickr.com desktop that allows you to easily manage your pictures
Movie management and upload for Flickr and Vimeo
Smart iPhoto to Flickr Uploader For Mac OS X
The easiest way to upload 365 images
kFlickr is a standalone Flickr uploader for KDE.
Open source Python based console Flickr uploader tool thingy
FlickScreen – Quickly upload screenshots to Flickr