Fortune's curated selection of weekend tech stories. Sign up to get the round-up delivered to you each and every day.

"Yeah, Google's a great company, and I think we want to look at and learn from everything that they do. But at the same time, people have shared a lot on Facebook and have already told a lot of their life story on Facebook. And we think that we have by far better tools for doing that." -- Mark Zuckerberg on whether Google+ is a threat (The Next Web)

* CNNMoney reports that Facebook bought the location-based service Gowalla for an undisclosed sum. Most of the Gowalla team will move to Facebook's Palo Alto headquarters to work on the social network's recently-introduced Timeline feature. (CNNMoney)

*With market share of its desktop browser declining and a tiny 1% share of the mobile browser space, can Mozilla's Firefox browser survive? The company is doing all it can to stay competitive -- making mobile a priority, hiring new talent -- but the question remains whether those efforts will be enough against heavyweight browser competitors like Google (GOOG) and Apple (AAPL). (Bloomberg Businessweek)

* SAP (SAP) plans to buy the Web-based enterprise software company SuccessFactors for $3.4 billion. The deal is expected to close early next year and comes roughly two months after rival Oracle (ORCL) agreed to purchase RightNow Technologies, a customer service software maker, for $1.4 billion. (The New York Times)

* Salman Khan made waves when Khan Academy's free online collection of education videos took off. Now, Khan wants to do it again by integrating those videos into the school curriculum, starting 36 institutions around the country. (The New York Times)

* Traditional game companies like Microsoft (MSFT), Nintendo, and Sony are readying a new wave of gaming hardware, but is next-generation gaming actually already here? (Fortune)

* With celebrities like Lady Gaga, Justin Timberlake, and Leonardo DiCaprio getting in on the investing game as of late, GigaOm explores whether we're seeing a fad or the future. (GigaOm)

* Meet Senzari: a Pandora-like startup with $2 million in angel funding that wants to outperform Pandora itself by offering a wider selection of music (10 million plus vs. Pandora's 900,000) to users around the world. Senzari is currently in private beta in the U.S. and Brazil, but plans to expand to Latin America, Spain, and Australia. (TechCrunch)

* THE PARTING SHOT: A look at Facebook's "Open Graph" and why the social network is pushing automatic sharing (aka "frictionless sharing") so hard. (Robert Scoble/Scobleizer)

Don't miss the latest tech news. Sign up now to get Today in Tech emailed every morning.