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These Startups Aim to Disrupt Travel, Real Estate, Healthcare and Investing

One company hopes to use cryptocurrency to finance journalism. Another is using artificial intelligence to help people snare the best hotel prices. A third is making an extremely low-powered microphone for portable voice-activated devices.

All three are in our latest group of startups we think are worth watching. The nine firms are in a wide variety of businesses—from real estate to stock trading to cybersecurity. But all are disrupting existing businesses. Several are using AI technology, such as Hopper, StockSmart and Darktrace.