Today in Tech: Facebook’s new 1-million square-foot campus by JP Mangalindan @FortuneMagazine July 25, 2011, 7:11 AM EST E-mail Tweet Facebook Google Plus Linkedin Share icons 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. A glimpse of Facebook's new HQ. Photo: Aaron Sittig via TechCrunch * Facebook started moving the first bunch of lucky staffers into its new 1-million square-foot Menlo Park campus. Company product architect Aaron Sittig documented the move with some choice snapshots. * Apartment-swapping startup Airbnb is on a roll: it just raised $112 million at a $1 billion valuation, led by Andreeessen Horowitz, bringing Airbnb’s total funding to $119.8 million. (TechCrunch) * News curation app Flipboard introduced in-app advertising by way of a partnership with publishing house Condé Nast and American Express. Readers of The New Yorker should expect to see them, followed by regulars of Wired, Bon Appétit, and other magazines. (Flipboard) * Why Hulu, billed as “tomorrow’s TV,” looks boxed in. (The New York Times) * How the Valley was won: the birth of tech in Silicon Valley. (Digital Trends) * Decoding your e-mail personality. (The New York Times) * Social media background checks? How more employers are checking candidates’ social media history. (CNN) * Five current trends shaping the TV industry. (Mashable) Don’t miss the latest tech news. Sign up now to get Today in Tech emailed to you each and every morning.