Daniel Lyons

If your plumber or pool installer or local appliance store uses HubSpot software, HubSpot may be holding information about you without you even knowing it. We figure we're safe when we use online services. We figure we can trust the people who run them not to snoop on us. I used to believe that. I don't anymore.

Some law firms now use artificial intelligence software to scan and read mountains of legal documents, work that previously was performed by highly paid human lawyers.

I wanted to write a book about what it's like to be 50 and trying to reinvent yourself - that struggle. There are all these books and inspirational speakers talking about being a lifelong learner, and it's so great to reinvent yourself, the brand of you. And I wanted to say, you know, it's not like that. It's actually really painful.

Some people don't have a sense of humor.

The office-as-playground trend was made famous by Google and has spread like an infection across the tech industry. Work can't just be work; work has to be fun.

Nvidia's self-driving-car business grew out of a long-standing relationship with auto companies. Car guys used Nvidia chips for computer-aided design, then used Nvidia supercomputer chips to do crash simulations. When the car guys started thinking about autonomous vehicles, Nvidia leaped at the chance to help them solve the problem.

The technology, called near-field communication, involves a microchip that can send and receive data across very short distances, about four inches. Instead of swiping a credit card, you hold your phone near a reader and let the data zip between the two devices.

To make a vehicle autonomous, you need to gather massive streams of data from loads of sensors and cameras and process that data on the fly so that the car can 'see' what's around it.

Can anyone create an enduring business on the Web, where it's easy to build new companies, and when survival depends on the whims of fickle users? The big lesson of 'Digg' may be simply this: if someone offers you a ridiculous amount of money for a company that wasn't that hard to build, don't think twice. Take the money and run.