I tried to post a video here:

http://www.ehmac.ca/everything-else-eh/73144-ny-plane-crash-all-safe-5.html#post802970

When I clicked on the preview of the post, the video appeared as it should, but once I posted it, the video does not appear.

Is this just a glitch or is the ability now gone?

I tried to post a video here:

http://www.ehmac.ca/everything-else-eh/73144-ny-plane-crash-all-safe-5.html#post802970

When I clicked on the preview of the post, the video appeared as it should, but once I posted it, the video does not appear.

Is this just a glitch or is the ability now gone?

Fixed. Just need the code before the "&". Took out the "&" and everything after that.
Not the most graceful way of posting YouTube, I know. Hopefully something better soon.

When posting a YouTube, don't copy from the address bar at the top of the screen - that address will get you to the video, but it has extra junk in it that causes the embedding not to work.

Instead, click on the "share" link, and then copy just the part after the "=" in the box that shows up. See attached image.