When something better comes along to replace or supplement it, Facebook use will undoubtedly level off or decline. Until then, I doubt it will decline much if

When something better comes along to replace or supplement it, Facebook use will undoubtedly level off or decline. Until then, I doubt it will decline much if at all. It's gradually replacing all the independent communities with convenient Facebook communities and user groups, it's a convenient one-stop site for communicating with friends, sharing pics and generally relaxing at the water cooler. Teens of course will always look for some alternative (WhatsApp, Reddit, etc) so as not to appear to conform to their parents' generation, but in reality there is no particularly great alternative that offers everything FB offers, especially in terms of sheer numbers of participants.