By Daniel Hunter
Facebook, at their first ever marketing conference, have announced ways for businesses to make money from the website.
Premium, which allows firms to place ads on mobiles for the first time and to advertise on the log out screen, was unveiled.
Another feature announced is Offers, which will allow businesses to offer discounts to users that "like" their pages.
Facebook is poised to raise at least $5bn (£3.16bn) in a stock market float later this year.
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