no
yes
Yahoo mail can be signed into with the ID from Facebook. It can also be signed into with values from Google. It will also accept the Yahoo! ID and password.
As per my knowledge you can use other e-mail id for Facebook such as gmail. So no need to worry about Yahoo.
yes mine is
You can change the settings of Facebook to be your primary email ID. The ID could be of Gmaiil or yahoo too. The first ID is generally the primary ID.
Yes the passwords can and probably should be different.
shut ur mouth
Youtube, Myspace, Twitter, Facebook, Yahoo, etc.
Yahoo is an email site. So... If you know their email you can find them. And if you have a facebook You can connect it and all your friends' emails would be in your contacts.
Yahoo ID is a Yahoo user name that you create on Yahoo's website.
yahoo id made by
a yahoo id is your email likefredisajasck@yahoo.com that would be your email id.