If you want to copy a link and email it, look below the thumbnail image of the video you want to copy. You'll see 4 different links. Image, Direct Link, HTML and I forget what the 4th one is. For an email, you need to click once on the 'direct link' and a little yellow box should pop up that says 'copied' and then all you have to do is open your email and then right click and then select 'paste' and send the email. But lately the little yellow box hasn't been popping up for me so now what I do is click on 'direct link' and the link to the right of it will be highlighted in blue. Just right click when it's turned blue and select 'copy' and then open your email and right click and select 'paste'.

There is also another way. You can send an album by email. My brother did this last night and when I opened it in my email, any video I was watching in his album, had a link that I could click on that said 'copy this video to my album' and it would automatically copy it into my own Photobucket album.