Designing a voice interface? Here's a useful list of lists: as many guiding principles as we could find, all in one place. List compiled and edited by Ben Sauer @bensauer.
Best curation of voice design principles aroundCons:
When I was working on an article about designing for voice, this was an amazing resource - it summarises principles from all over the web into a simple consistent formatGraeme has used this product for one month.