Facebook roundup: Developers Live, Promoted Posts, Nasdaq and more

Facebook turns 9 – Monday marked nine years since Mark Zuckerberg launched thefacebook.com as a social network for Harvard students. The company did not seem to mark the occasion with any public fanfare, though it is having an employee celebration it its headquarters today. Perhaps Facebook will make more of a PR push for its 10th birthday on Feb. 4, 2014. For example, on the fifth anniversary of the site’s debut, Zuckerberg wrote a blog post about the event, the company shared a retrospective of the Facebook profile over the years and allowed users to send their friends a free virtual thank-you gift.