Fortune's curated selection of the weekend's most newsworthy tech stories from all over the Web. Sign up to get the newsletter delivered to you every day.
* With 7,000 employees and a recently-filed initial public offering (IPO), Groupon is one of the fastest growing companies in tech right now, but it's business model remains a mystery to most. Here's a primer, and for further reading, check out two opposing critical view points that have emerged since the IPO filing summed up in "Why Groupon is worth $25 billion" and "Groupon is effectively insolvent." (Don Drodge on The Next Big Thing, steve's blog, and Minyanville)
* Why Apple's impending iCloud service, which will probably get a big unveiling later today at the company's annual Worldwide Developer's Conference (WWDC), will be to MobileMe what the iPhone was to the failed Newton tablet. Meanwhile, Amazon already has Steve Jobs' authorized biography, iSteve: The Book of Jobs, available for pre-order eight months before its March 2012 release date. (Fortune)
* Take this with a grain of salt: the Japanese publication Nihon Keizai Shimbun reports that Nintendo's next videogame console, to be unveiled tomorrow morning at an E3 conference event, will feature controllers packing a six-inch touchscreen, camera and rechargeable battery giving games "tablet-like controls." (Nihon Keizai Shimbun via Joystiq)
* Are video game consoles' dominance crumbling? (LA Times)
* AT&T CEO Ralph de la Vega on which smart phones are winning. (All Things D)
* How a lewd Twitter photo may have derailed Anthony Weiner's political future. (New York Daily News)
* An in-depth look at Instagram and the rise of photo-sharing apps in every day life. (New York Times)
* How Facebook can put Google out of business. (Digital Quarters)
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