Choose the right sharing icon to boost user engagement

What’s the best icon to entice people to share something through their social networks? It turns out to be the one used on Android. While this may contradict guidelines proposed by some designers, this conclusion is based on the results of a survey of 7,500 users. I conducted the survey using Google Consumer Surveys this […]

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Using big data to understand users' privacy concerns

Worries about big data and privacy are all over the news, but our new research shows that big data can also help better understand users' privacy concerns.

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Meaning matters: Why Google switched to numeric captchas

This is the story of how — and why — Google switched to numeric captchas. Captchas are these wiggly words used as a puzzle to tell humans apart from computers. Over the last few years, based on my work that began at Stanford, I’ve been working on designing a more user-friendly captcha for Google that […]

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Survey: Most people don’t lock their Android phones — but should

Half of Android users don’t bother to lock their phones, despite having the choice of using patterns, passwords, PINs, and even their faces to secure their devices. This contrasts starkly with a report from the Federal Communications Commission warning that up to 40 percent of robberies in major cities involve cell phones. More precisely, over 52 percent […]

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Phone screen size: Bigger isn’t always better

Marketers agree: screen size is a top priority for anyone shopping for their next cell phone but my new consumer survey challenges this conventional wisdom.

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