Flickr (among many other sites like Wikipedia) implemented a blackout today to battle SOPA. Their implementation is different though – each user on the site can block up to 10 photos, but those photos can be from anyone, not just the user’s own photos. Browsing through Explore, all photos that aren’t opted out are already blacked. Raises awareness of the issue on whole another level than if the blocking was just of one’s own photos. Well done, Flickr duderinos!