Hmm. Maybe that’s not true in WordPress 3.0 (to which I am currently constrained). No icons appear.
(embarrassed slinking away… was using wrong username/password)
Thanks! That seems to have solved it.
That doesn’t seem to work in WordPress 3.0. All I see is the link text, and it’s not even an active link. I can link to the video, but only as a link, not an embed.