Flickr launched a new and improved fullscreen “slideshow”, which’s available from every page where you see a group of photos on Flickr: “photostream pages, sets, tag pages, group pools and search results”. The main improvements is that you can watch videos as they appear in a slideshow. When a video in a slideshow appear, it’ll play before moving to the next item.
You can also embed a slideshow on another website in bite-sized form. Just click the “Share” link from any slideshow, then copy and paste the embed code wherever you want. Lastly, you can embiggen a slideshow! Click the full size icon on the bottom right of any slideshow to have it take over your screen.