Creating a new Facebook account is quite simple, you have to provide only a few data to complete the Facebook registration process. The required age minimum is 13 years.

Link: http://www.facebook.com/settings
Note: Maintaining multiple accounts is a violation of FB's Terms of Use, if you already have more than one, you must delete all your duplicate Facebook accounts. Facebook does not support merging them.
With your account, you can chat online with your friends, you can post your latest news about you on your Wall, and you will be able to use as much useful or amusing applications as you want.
You can manage your Facebook account settings for additional safety and privacy, you can set for example:
- Browse Facebook on a secure connection (https)
- Send me an email when a new computer or mobile device logs onto this account
You have the choise to deactive your Facebook account any time you want to take a break. Your profile will be temporary invisible during this time, but with reactivation it is possible to recover all the information including the profile, list of friends, photos, just as it was before.