You need to be 13 to have a Facebook account.
Without clarifying what "wiki" you are joining, it is not clear whether or not you need a Facebook account to do so. For example, you do not need a Facebook account to become a member of Wikipedia. However, you need a Facebook account to join WikiAnswers.
You don't need a Facebook Account to get a Skype Account!
In order to create an account on Facebook, you need to be at least 13 years old.
You can't, you need to use your Facebook account to register an account on WikiAnswers.
Without clarifying what you are joining, it is not clear whether or not you need a Facebook account to do so. For example, you do not need a Facebook account to join in a game of baseball, you just show up and ask the people there. However, you need a Facebook account to join WikiAnswers.
a facebook account
No, a Facebook account is not required. You can sign up with either Facebook, Twitter or your email address.
There is no to need to link the account if you are the admin of your page then your profile account is directly linked to the Facebook Fan Page
You can't. To use the application in facebook, you need to create an account.
search their name with a different facebook account.
nether do i
If a website requires you to have a Facebook account, you will need an account. You can choose to keep your Facebook profile private.