.5C + .15M + .20T + .15P = Success.
Mashable breaks down what it means:
50% C = Content and Production. You need substance.
15% M = Metadata. If you donâ€™t fill out as many relevant tags as you can, youâ€™re shooting yourself in the foot.
20% T = Thumbnail. Itâ€™s your free advertisement to the world. If you can pick your thumbnail, pick a good one.
15% P = Promotion. If you have a Facebook network, a bunch of twitter friends, and a blog to post on, you should do it. The video wonâ€™t discover itself.
So there you have it.