Week in review: Did Amazon just kill the Nook?

Here’s our roundup of the week’s tech business news. First, the most popular stories VentureBeat published in the last seven days:

End of the Nook? Amazon announces 14-day Kindle ebook lending — Amazon announced that it will be introducing a 14-day lending feature for Kindle ebooks later this year. The move brings the Kindle up to date with Barnes and Noble’s rival Nook e-reader, which has touted 14-day book lending as a key feature.

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Digg’s former CEO Jay Adelson has “no regrets” about not taking offers — Adelson said Monday that he doesn’t regret not accepting offers to sell Digg to large media companies before the site began a decline that led to 37 percent layoffs this week.

Google exec: Android was “best deal ever” — Buying Android Inc., the wireless-software startup founded by Andy Rubin, was Google’s “best deal ever,” said David Lawee, vice president of corporate development at the search giant.

Dropbox CEO: Why search advertising failed us — In Dropbox’s early days, the company did all the things that startups are “supposed” to do, like buying ads on Google’s search results through AdWords and hiring a public relations firm, according to chief executive Drew Houston. And the results were “horrific”.

How Apple narrowly avoided another “antennagate” with white iPhone 4 camera — Apple may be holding back its promised white iPhone 4 in order to avoid a scandal surrounding the phone’s camera.

And here are five more articles we think are important, thought-provoking, fun, or all of the above:

The super grid. Coming soon to a power outlet near you — The electricity grid needs to change. We look at how those changes are going to happen.

Review: Nokia’s N8 is a hardware beast trapped in Symbian’s cage — Why can’t Nokia sell phones to Americans? VentureBeat’s Devindra Hardawar says it’s because of phones like the N8.

Filmmaker James Cameron wants us to be technologists with a conscience — In a conversation with Google chief executive Eric Schmidt, film director James Cameron urged technology-minded people to become better stewards of the planet. That was a fundamental message of Cameron’s blockbuster film Avatar, and it’s also the advice he has for people who have their heads down building cool technology in Silicon Valley.

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Use less power at peak, and pay less? Duh, it’s about time — For the past century, buying electricity from your utility has been about the same. Finally, that’s changing.

What seed-stage star Christine Herron’s move to Intel Capital means — Well-connected early-stage investor Christine Herron is leaving seed-stage venture-capital firm First Round Capital to join Intel Capital, the chipmaker’s corporate venture arm. Does Herron’s jump show that corporate venture-capital funds are no longer waiting on the sidelines when it comes to seed funding? In Herron’s own opinion: Yes.