YouTube Changes Default Embed Code to HTML5
Mark Robinson points out that YouTube has changed their default Embed code from an object tag to an iFrame tag. You can still get the old tag by clicking the " Use old embed code " check-flag, but you have to remember to do that. Curiously, this new tag doesn't seem to place nicely with Blogger (previews don't work) so I am still using the old Object tags for the moment. ReelSEO : YouTube Quietly Changes Default Embed Code to HTML5-Friendly iFrames