Zilla is a free photo/video backup assistant that helps you to keep your memories backed up to your Flickr account.
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When you upload photos and video to Flickr, it stores them in 'Photostream'. Photostream can be displayed as a 'justified' view, a slideshow, a 'detail' view or a 'datestamped archive'. Photostream always shows your most recently uploaded photos and videos. You can easily change the order of photos in Flickr Photostream by editing the posting dates for photos.