user30: A user of our community with solid experience in the game wants to teach others. There is a video broadcast in our site. I need to attach a shareable chessboard to the broadcast. Where a coach can manipulate with figures and students can see the changes simultaneously.
Is there any online service which allow to share a board in real time (I suppose to show it in a frame)?

user11629: Lichess has a feature called "study" which allows collaboration and best of all it is free: https://en.lichess.org/blog/V0KrLSkAAMo3hsi4/study-chess-the-lichess-way

user4418: 
Is there any online service which allow to share a board in real time
  (I suppose to show it in a frame)?

Have you tried sharing your desktop in a Skype conference call?
Another alternative might be Google+.

30: <p>A user of our community with solid experience in the game wants to teach others. There is a video broadcast in our site. I need to attach a shareable chessboard to the broadcast. Where a coach can manipulate with figures and students can see the changes simultaneously.</p>

<p>Is there any online service which allow to share a board in real time (I suppose to show it in a frame)?</p>
 11629: <p>Lichess has a feature called "study" which allows collaboration and best of all it is free: <a href="https://en.lichess.org/blog/V0KrLSkAAMo3hsi4/study-chess-the-lichess-way" rel="nofollow noreferrer">https://en.lichess.org/blog/V0KrLSkAAMo3hsi4/study-chess-the-lichess-way</a></p>
 4418: <blockquote>
  <p>Is there any online service which allow to share a board in real time
  (I suppose to show it in a frame)?</p>
</blockquote>

<p>Have you tried sharing your desktop in a Skype conference call?</p>

<p>Another alternative might be Google+.</p>
