On many popular videos, you see this: Is there a way I can add my blog to the index or does my blog need to have many hits to be added automatically?
asked Jul 14 '11 at 02:53
All It is, is just that that video was shown on some page. If the blog/website is popular and your video gets featured, Youtube will put the As seen on tag.
answered Jul 14 '11 at 03:26