In my opinion, Facebook, while still useful and still serving a purpose, is nowhere near as compelling a platform as it once was. With more and more people frustrated with Facebook and its perceived overreach of power, pending lawsuits and the rise of competitors, Facebook's shine may be starting to wear off. Be aware of the changes and stay proactive, but most of all, be careful where you are placing your hard-earned advertising dollars as platforms and audiences shift beneath our feet. Only time will tell where the best investment for your advertising dollars will be in the coming years.