I think you do not need a link to post an image.
That the idea of a media center.
They do every thing for you.
For videos all you need is a number and copy the number and
brackets they show you.
I will give you a video example:
media.abovetopsecret.com...
Go to the media page and see the right side.
There is a UFO making a trail.
See at right: embed at ATSs, copy and past and you get:

(click to open player in new window)
I figure the same for images.