Dvein

I first discovered Dvein on Behance. Their work is exceptionally well-executed and usually accompanied by excellent music. Their clients include National Geographic and Diesel Jeans. If you have some extra time, I recommend looking at some of their work. They are located in Barcelona, Spain, so much of their work is used to promote motion and animation overseas.

Image via a screenshot of Dvein's website

T2 makes motion delicious

Hello Monday created a very interactive website for motion design company T2. Not only does a constant reel of T2's work play, but your entire visit to the site is recorded and played back to you through very engaging visuals. The interface is rather nice and it loads quickly and clearly. Go ahead and take your cursor on a journey.