First you can login on facebook and then Go to setting->then click on privacy setting->change there your name..
Change your passwords.
shut ur mouth
Yahoo and Facebook did not merge. Yahoo is a search engine that competes with google and bing. While Facebook is a social networking site
Facebook is newer then Yahoo and has more things then Yahoo does. The interface is better on Facebook then Yahoo. Facebook is only a Social Networking website not a search engine and it doesn't have as many internet related things that Yahoo does. I personally use Bing as a search engine.
how do i move a picture that was emailed to me at my yahoo account into my facebook profile
i think he has a facebook
disconnect your yahoo account from your Facebook account.
no
no
You click facebook then log in! Boom :)!
As per my knowledge you can use other e-mail id for Facebook such as gmail. So no need to worry about Yahoo.
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.