1001 for Mac OS X is a desktop client to be used in conjunction with Flickr. It not only uploads photos to your Flickr account, it notifies you anytime new photos from either your contacts, everyone, or your favorite tags are uploaded. 1001 allows you to step into the stream of photos passing through Flickr and to quickly see what’s new at the moment. Just run the app in the background and if triggered, 1001 pops up a small unobtrusive window to notify you of new photos.
Background Switcher periodically changes the background image on your computer (like every hour or every day). You can specify which pictures to choose from in any of the following ways: you can select a list of specific pictures on your computer, you can point it at a selection of folders on your computer, such as ‘My Pictures’ and it will select random pictures from there. You can select pictures by person, tags, sets or just plain random and there are a host of options to narrow down the pictures and increase the quality of those chosen.
Desktop Flickr Organizer for Gnome allows online/offline mode management of your photos. You can upload, search and download photos, through the easy to use interface.