I really don't have much on this, but just ran into an interesting site which, although somewhat esoteric, seems like a good resource.
Borderline Personality Disorder
I just ran into a very intriguing site called 'MY BPD" which has a wonderful description of borderline personality disorder symptoms. The lady that put the page together included a page called the emotional blackmail page, which is for a person BEING emotionally blackmailed. It's lovely. It tells you responses to common emotional blackmailing approaches.
Hystrionic Personality Disorder
Here's her page on hystrionic personality disorder. Frankly, as a writer, this stuff is meat and potatoes for fleshing out characters (a terribly inappropriate statement for a "medical" section of a website, but hey, it's my site.)
Although I know that alternative treatments crawl out of the woodwork with alarming frequency, I'll list some of them, just for interest. I'll try to list the corresponding article about them from Quackwatch.