Pandora founder Tim Westergren blogged that the company has signed up its 50 millionth user, just three and a half months after passing the 40 million milestone. The service had 48 million registered users at the end of February, which means it grew by two million users in 25 days – or 80,000 new registered users per day.
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Tools: Kaiber
In the year or so since its launch, AI startup Kaiber has been making waves,…