Not public yet. The fast-growing workplace messaging app Slack raised $250 million from investors, including SoftBank's Vision Fund, at a valuation of just over $5 billion, the Financial Times reports. With revenue still on pace to more than double annually, CEO Stewart Butterfield says: "If it was 10 years ago we'd be public by now." Expect that debut next year instead, he adds.

Fourth to market. The autonomous car push at General Motors is progressing well and the unit, Cruise Automation, will soon open a ride-hailing service for people outside the company, Reuters reports. Only Alphabet's Waymo, Uber, and startup nuTonomy have reached that milestone.

Stamp out the hate. Facebook and Google moved to quash the controversy over the ability to use hateful terms to target advertising on their networks. Facebook had to turn off one of its automated advertising suggestion tools. Google stopped its main ad system for search from suggesting offensive phrases.

Can you hear me now. After T-Mobile decided to give its unlimited data plan customers free Netflix, which followed AT&T's free HBO offer for its unlimited customers, Verizon may have something similar in the offing. CEO Lowell McAdam says the company is putting together its own content deals and will likely announce one by the end of the month.

Nuttiness premium. Pre-orders for the new Apple iPhone 8 and 8 Plus started Friday and the smartphones quickly sold out for first day delivery on September 22. Apple's web site now shows a one to two week delay. Over on eBay, a dozen crazies paid up to $1,989 to buy phones from early pre-orderers.

Not so clean. Hackers hid a malware program in legitimate copies of the popular PC maintenance app CCleaner from Avast Software for about a month, possibly infecting up to 4 million computers. The hack looks to have been an inside job, according to security firm Cisco Talos, which discovered the hidden program.

Internet rules. The Emmys were big again for online streaming services. Netflix won 20 total awards, more than any other outlet except HBO which won 29. Hulu won 10 awards, including for best drama series, and Amazon won two. "Yet another year that broadcast TV appears irrelevant," BTIG analyst Rich Greenfield quipped to CNN's Brian Stelter.

Computer scientist Alan Kay helped conceptualize or invent many of the most popular innovations of our high tech world, including the graphical user interface and the tablet computer. But in an interview with Fast Company, Kay is concerned about the impact of smartphones, which may be dumbing down the world.

If people could understand what computing was about, the iPhone would not be a bad thing. But because people don't understand what computing is about, they think they have it in the iPhone, and that illusion is as bad as the illusion that Guitar Hero is the same as a real guitar. That's the simple long and the short of it. What's interesting is, the computational ability of an iPhone is far beyond what we need to do good computing. What you wind up with is something that has enough stuff on it and is connected to enough stuff, so it seems like the entire thing.

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Smartphones and computers may have shaken up our culture but the impact is even more stark in the Amish community. The New York Times had a masterful profile of how the technologies are infiltrating even this society that has resisted the trappings of the modern world for so long.