Ok, sorry about my confusion with rights issues. I used to be very involved with those things.
I know of no capability for Bridge to do that, however, there may be some issues: if you put a url in an email, it may or may not get chopped up into separate lines which breaks the url.
I make the newsletter for my woodworking club and we have a section of good woodworking urls that members can go to. What I do both to help prevent broken links as well as save a LOT of space is to use the website tinyurl.com. There you can paste any length url and it will shorten it to a very short one.
I work in InDesign and I copy this url and past it into ID. I also have a short summery that proceeds that. By alternating "about" "url" back and forth I can use style first, then next style" to compose everything in a few clicks.
but, as you can see, Bridge is nowhere near any of this.
Echoing what Gary said - Bridge cannot do what you want. Bridge is a file browser and the thumbnails are representations of files on a drive. What you need is the ability to embed a playable video thumbnail, they way you can in html. The best you could do in Bridge it to create a jpeg thumbnail of the video and add the YouTube link in the description metadata. You could also use the last part of the URL as the filename, e.g., XSWkF8heIrE No, that's not an easy process and probably not workable.