1. Analytics firm Chartbeat has opened up its measurement methodology, limitations and all. By exposing their thinking and technology, they give the service’s users better insight into their reports — and simultaneously ramp up the pressure on the competition to go transparent.
2. Now that we’ve all given up on comments, annotation is on the rise. The Genius platform continues its quest to annotate everything through social reading. Spend a little time with Tech Genius to see how people dissect and discuss noteworthy texts.
3. Pew released a sobering report on the state of online harassment. Younger adults are more likely to have experienced some kind of harassment, from name calling to physically threats. Young women experience particular, severe forms of harassment, with a full 26% reporting that they have been stalked online. See also: #GamerGate.
4. Before you respond to that email, pause. This HBR post explains how to improve your communications by being a little less quick on the draw with the send button.
5. It’s the end of apps as we know them. The mobile experience will be less about sifting through app icons spanning multiple screens, and more about apps sitting in the background, serving up relevant content as needed.

Weekend fun: How many times has your heart beat? How has the planet changed around you during your lifetime, from animal extinctions to solar eclipses? Check out this clever, interactive visualization from the BBC.

Every Friday, find five, highly subjective pointers to compelling technologies, emerging trends, and interesting ideas that affect how we live and work digitally. Try out the Friday 5 archive, or sign up for a weekly email.