Please see here at 3 minute mark: https://vimeo.com/2764455
There are two tabs in the forum post formatting bar that allow you to embed videos from vimeo and youtube.
https://vimeo.com/2764455 —->should become—>
Sometimes you get weird URLS for youtube depending on how you found it, if it was in a play list, whether it was embedded, etc. In these cases, the only thing that’s important is the part between the FIRST equal (=) sign and the FIRST ampersand (&).
For example, [code]https://www.youtube.com/watch?v=gDSQjvTMN_A&feature=related —>should become—>