Vimeo. What can I say? You make me go "aaaah" when other sites make me go "uhhh". Uh huh?
I run the blog, Kuriosiatas (link above) and love nothing more than trawling vimeo for new videos to blog about - I am a particular fan of animation and short films.
Which brings me to my next point. If you take a look at my website and get a feel for the sort of video I include (or you can look at my favourites here, that will give you just as good an idea) and you feel your own work would fit in or you know a video you think would - then please drop me a line!