Basic link versions

SHAREFACEBOOK

http://www.facebook.com/sharer.php?u=http%3a%2f%2fwww.youtube.com%2fairnzrico&t=Rico%20Air%20NZ%20video

SHARETWITTER

http://twitter.com/home?status=Rico+Air+NZ+video+http%3a%2f%2fwww.youtube.com%2fairnzrico

SHAREMYSPACE

http://www.myspace.com/index.cfm?fuseaction=postto&t=Rico%20Air%20NZ%20video&u=http%3a%2f%2fwww.youtube.com%2fairnzrico

SHAREDELICIOUS

http://del.icio.us/post?url=http%3a%2f%2fwww.youtube.com%2fairnzrico&title=Rico%20Air%20NZ%20video

SHAREDIGG

http://digg.com/submit?phase=2&url=http%3a%2f%2fwww.youtube.com%2fairnzrico

SHARESTUMBLEUPON

http://www.stumbleupon.com/submit?url=http%3a%2f%2fwww.youtube.com%2fairnzrico&title=Rico%20Air%20NZ%20video

SHAREGOOGLE

http://www.google.com/buzz/post?url=http%3a%2f%2fwww.youtube.com%2fairnzrico&title=Rico%20Air%20NZ%20video

SHAREVIAEMAIL

mailto:?subject=Rico%20Air%20NZ%20video&body=Check%20out%20this%20video%20%27http%3a%2f%2fwww.youtube.com%2fairnzrico

Javascript versions

There are also javascript versions of these which present a nice popup or other sort of thing.

Images

It is possible to include links to a thumbnail along with your sharing. Facebook implements this is OpenGraph META tags.