"Facebook claims to have more than 400 million active
users. In fact, according to Web analytics firm Alexa, only Google
is a more popular site. So, with all that going for it, why are so
many users unhappy, with one poll showing that more than half of
Facebook users are thinking about leaving?
"The one-word answer: privacy. By default, Facebook has made
almost everything on your account open to the world. You can lock
down your Facebook account, but it's a tedious process.
"New tools unveiled this week are designed to make this easier,
but the next time Facebook changes its policies and system, you may
need to do it all over again. There are also external tools that
can check out just how secure your account is, but again, when
Facebook changes its software, they may not work."