Flickr’s new look is in beta, but you can try it out now. Take a look at my picture here: http://www.flickr.com/photos/avehouse/4704434567/
Click “take me to the future” above the image. See the change? There are a bunch of new features, but my favourite is the easy access to “view in lightbox”. Press the letter F on your keyboard (and then press F again to exit lightbox mode). Gorgeous!