My son was conditioned into a biter through treatment he received at day care and the only thing that eventually worked was a handslap and firm "no!" consistently whenever it happened. It took about a month, but he stopped. She may be teething and find that your clavical or shoulder or whatever she's biting is just perfect for relieving the pain...lucky mom :)
You may want to start with pulling her off of you and setting her down without any emotion, dropping your voice, and firmly saying no, and walking away ignoring her pleas for your attention. If that doesn't work, perhaps then trying a that plus a handslap...
let us know what finally works!