Teens Experiencing Facebook Fatigue
One in five (19%) teenagers who have a @Facebook account no longer visit Facebook or are using it less.
To believe that Facebook will only continue to grow mind/marketshare in 2010 is as shortsighted as believing housing prices could only go up in 2007. THE INTERNET IS CYCLICAL, FADDISH, AND MERITOCRATIC.
Andres is 100% correct. We constantly learn this lesson (see: rise and fall of virtually every Internet company over the past 15 years) and yet we never learn this lesson.
Besides the faddish nature, teens also like to have a place which is their own. When enough adults from their social circle join these networks or understand them enough to eavesdrop, teens are ready to move onto the next more private or exclusive means of communication. If for anything else teens stop using Myspace and will stop using Facebook because the outside noise gets too much.