スクープ！ Yahoo Photosの閉鎖、明日発表
I've used both Flickr and YouTube, and while YouTube's undoubtedly popular, I find it's mostly a passive experience of watching video. The comments most people leave are unintelligent. Flickr users, on the other hand, have more to say, and are more active in adding notes, comments, and tags to other people's photos. Flickr users, too, are vastly more respectful of copyrights than YouTube users, since a good number of them are photographers who use Flickr's tools to mark their own photographs as copyrighted.