Linux only: Applications like jUploadr are great for posting photos and editing photosets in the photo-sharing website Flickr, but its Java core can make it slow and wonky for some users. GNOME-based application Postr is a streamlined posting solution that features drag-and-drop file choosing, tag and description editing and, most of all, a clean, simple interface. Postr is a free download for Linux systems and available in many repositories. KDE-based Linux users can also check out Kflickr.

Postr [via New Linux User]