Facebook sent out e-mail invitations to Bay Area reporters and bloggers on Monday evening to announce an event at 10 a.m. Pacific time Wednesday at its Palo Alto, California, headquarters. The wording is vague: "Join Us for an Event." It probably isn't a celebration of the fact that "The Social Network," the ambiguously fictionalized film retelling of Facebook's contested origins, was tops at the U.S. box office this weekend. The massive social-networking company has been launching an unusually heavy number of product initiatives in the past few months, from a gaming notifications overhaul to enhancements to its Facebook Photos product to the long-anticipated Facebook Places geolocation launch in August. The invitation's use of the word "event" might hint that Facebook Events, the social network's invitation service, is getting a revamp (something AllFacebook's Nick O'Neill also noticed). Late this summer, when Facebook formally acquired event "check-in" service Hot Potato, multiple sources told CNET that Hot Potato CEO Justin Shaffer -- the real reason for the $10 million acquisition -- had been enlisted to revamp Facebook Events. It hasn't been long since Shaffer formally joined Facebook, but given the company's reputation for late-night "hackathons," restructuring Facebook Events in a matter of weeks would not be out of the question. That strategy -- purchasing a company to revamp a specific Facebook feature -- would parallel what Facebook did with Facebook Photos. For that, Facebook acquired a photo-sharing start-up called Divvyshot, shut it down, and brought its executive team onboard to run the Facebook Photos product. Source: CNN