Whoever may be the guy behind viewonblack.com (I couldn't find any about page on this site nor any reference to him on Flickr), he did in my opinion the best "view on black" service for Flickr.
Yet, I was missing a bookmarklet to easily make a link to it. Now here it is
Bookmarklet Source Code:
javascript%3Avar%2520photoID%3DString%28location%29.match%28/%5B0-9%5D+/%29%3Bif%28location.host.indexOf%28%27flickr.com%27%29%21%3D-1%26%26location.pathname.indexOf%28%27photos%27%29%21%3D-1%29%7Blocation%3D%27http%3A//www.viewonblack.com/flickr/%27+photoID%3B%7Delse%7Balert%28%27Use%2520the%2520viewonblack%2520link%2520from%2520a%2520flickr%2520photo%2520page%27%29%3B%7Dvoid%25200
