Wonderful collection. I have been searching for a collection like this one for sometime. It definitely has good quality stuff. As @pierrickgt also pointed out, I would be interested in a weekly summary mail with all the GIF goodness.
The last big shift in interaction design was motion. The next is activating an entirely new sense, hearing. We're now working on something new - http://sonify.co - a library of drag and drop sonic identity packs, for use in your next digital project.
Startup TV
Validly
BirdTab
Validly
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Mute.vc