It's really amazing how trends move, yet it's hard to put your finger on why exactly some things become such hits, why they fade, and why most never get big.
I think everyone in the geek community can sense that Facebook is beginning its (probably very long, slow) descent, but I don't know exactly why I don't use it much anymore. It's just not fun or worth my time like it used to be.
I know why I use it less and less - because the more they feel the need to broadcast everything I say and do to all the world, the less I feel like doing anything. also, the ui has just been feeling really tedious to use lately.