Does your firm have a presence on Facebook? Or maybe a key client's firm or business? If so, check out this article in the National Law Journal to learn about some important -- and imminent -- deadlines. Here's a quote: "Starting Saturday, at 12:01 a.m. EST, Facebook will allow an estimated 200 million users to select any 'usernames,' which can include a trademark, brand name or personal name. And if the owner hasn't registered the trademark first with Facebook, it's up for grabs."