Every Friday, find five quick links about compelling technologies, emerging trends, and interesting ideas. Source: the internet.

1. Google celebrated I/O by dialing up the design, it seems. There are some sexy, new fast actions in Gmail and a flat, card-based Google+ re-launch that shows they’ve been doing plenty of pinning over in Mountain View.
2. David Carr on Snooping and the News Media: It’s a 2-Way Street. Best line about digital trails: “The absence of friction has led to a culture of transgression. Clearly, if it can be known, it will be known.”
3. Twitter buys some visualization skills so we have more ways to make sense of all those tweets.
4. Quartz takes a look at why iPhones still have the lion’s share of mobile data activity. “So while it is true that Android phones vastly outsell iPhones, Apple users seem to be getting a lot more out of their devices. For now, at least.”
5. There’s a lot of crisp thinking and beautiful writing going on in this elegant longform piece on MOOCs, Harvard, and higher education by Nathan Heller in The New Yorker.