Social media site Reddit will allow the use of its content to train Google’s emerging AI-powered chatbots, in a revenue-boosting contract worth about $60 million a year. The move is in preparation for Reddit’s planned stock market debut; the platform is expected to file its initial public offering (IPO) later this week. Its deal with Google is the first with a leading AI innovator since Reddit announced it would sell commercial access to its content last year, and comes as many other AI designer...