Today, we take an in-depth look at taxi-hailing apps like Uber and Lyft, explore the world of Android Wear, ponder the evolution of Second Life and investigate Aaron Swartz's path from internet activist to martyr. Read on for Engadget's news highlights from the last 24 hours.

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What you need to know about Uber, Lyft and other app-based car services

Most of us are probably familiar with Lyft and its furry pink mustaches, but there's much more to app-based car services than meets the eye. Read on as Steve Dent investigates the legal frustrations surrounding taxi-hailing apps and what they mean for you.

Second Life's second act will be a social network for virtual reality

Linden Labs, the studio behind Second Life, is preparing a sequel, and it's going to be a social network for virtual reality. Read on as Sean Buckley sits down with CEO Ebbe Altberg to discuss the game's evolution and collaboration with Oculus VR.

Android Wear brings Google to life

Besides the smartwatch form-factor itself, what makes an Android Wear-powered device so important to Google's ecosystem? According to David Singleton, director of engineering, Wear is key to unlocking Android's full potential.

Walmart dropping iPhone 5c to $29, 5s to $99

Want to save $50 dollars on an iPhone 5c or 5s? Well, starting today, Walmart's offering the 16GB version of each with a two-year contract for $29 and $99, respectively.

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Engadget Daily: the evolution of Second Life, taxi-hailing apps and more!