They've been making it easier to share! *Squee!*
Popping onto your own liked videos, there's a Share on your Liked list.... Click on it and you can not only link to it, you can share on facebook, twitter and G+... click on the show more and there's things like Orkut, Blogger, Tumblr, StumbleUpon, Bebo, Digg and Myspace.
Just in case you want to spend a couple hours enjoying Dolidh-liking-goodness... you can pop onto mine on http://www.youtube.com/playlist?list=LLAhBKbRzEebOuXHB5laFOBg