Facebook Hackathon: AR Online Augment your world with Spark AR $7,000 in prizes Winners announced 1680 participants
Amazon Alexa Skills Challenge: Multimodal Online Build voice-first experiences that go beyond voice $150,000 in prizes Winners announced 976 participants
MHacks Ann Arbor, Michigan, USA Looking for the most recent MHacks? : http://mhacks8.devpost.com/ $31,760 in prizes Sep 20 – 22, 2013 611 participants
