Motion & Playfulness — Great presentation by Benjamin De Cock about animatons on the web.
Developing Taste — My own post on what taste is and why it matters.
Family Values — A post on how the Family app was built. Contains lots of animation details.
Designing Fluid Interfaces — A must watch presentation by Apple.
Fine-tuned performance — A talk by the Frame.io team about motion and performance.
Great Animations — On what makes an animation feel great.