To embed a video from YouTube, just paste the URL (change "https" to "http" if needed) directly into your post text.
The forum software will recognize the URL, parse it, and put up a video window.
Typing:
This is a soldering Video from EEV.
http://www.youtube.com/watch?v=J5Sb21qbpEQ
Hope you enjoy it.
Yields:
This is a soldering Video from EEV.
Hope you enjoy it.
Scott