Not really you cannot browse facebook to full extent, you need to logged in for full features.
If you don't have a facebook account just type their name on google and it should say join them on facebook.
You can browse without having an account.
Yes, you can play "It Girl" game without a Facebook account.
You don't need a Facebook Account to get a Skype 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.
At this time, you must have a Facebook account to join Tunespeak.
on google type the name of which facebook account you want to see and type facebook
You can't, you need to use your Facebook account to register an account on WikiAnswers.
no because they are sponsored by facebook
We cannot without your account name and password.
You can't. To use the application in facebook, you need to create an account.
There is a handy tool for searching on Facebook without account or logging in. The site listed below allows to search on Facebook by keywords and shows relevant facebook pages as well as recent posts of people on facebook with such keywords.