Can you send a message to someone on Facebook if you don't have a Facebook account?

[SK]

How do they get the message? Does it post publicly on their Facebook page?

[Kylie]

Nope you can't. You need to sign up

[Z]

You must have a Facebook account to send them a message.

[abraXus]

yes, you can send them a message from your email client, like gmail

their email address will be their URL (like this)

if his URL is http://www.facebook.com/billybob

then his email will be

billybob@facebook.com

the same applies if they havent chosen a username, in which case you would use the friend ID

http://www.facebook.com/1000223874

would be

1000223874@facebook.com