Here are three books you can check out if you’re into the correlation between “vampirism” and psionics.
1) Psychic Self-Defense by Dion Fortune (you can find it free on Scribd).
http://www.scribd.com/doc/50975273/Dion-Fortune-Psychic-Self-Defense
I have the original and the New Edition. If you are going to purchase it, get the new edition for sure. New age psionics is just old school Dion Fortune on protection against powerful psychic influences and attacks. Even if you’re not into the occult, it’s still a very essential book to have.
2) Practical Psychic Self-Defense--Understanding and Surviving Unseen Influences by Robert Bruce. I have this one and the other book he wrote on astral travel. (Astral Dynamics) They go hand in hand. He recounts many of his experiences in life that have to do with ‘negs”—Negative spiritual influences—be they entities or conscious or unconscious thoughtforms headed your way. They are both really good books. This one isn't on Scribd but his second one Astral Dynamics is:
http://www.scribd.com/doc/46979227/3-Astral-Dynamics-by-Robert-Bruce
If you like it, the hard copy comes with a really cool CD that you can upload into any of your mp3 players.
3) “Emotional Vampires—Dealing With People Who Drain You Dry” by Albert J. Bernstein, PhD. This one lacks all the woo-woo substance of the other two but it is one of the best books I’ve ever read in dealing with feet on the ground “how to” dealing with people who have some serious personality disorders. You’ll find it in the self-help section of your local bookstore.
Unfortunately, this one isn't on Scribd but there are 3 or 4 pages of reviews on it. It's an awesome book.
4) Even though I didn't list it, I did find another interesting book on Psyhic Vampirism while looking for the links for the other books. I haven't read it yet so I can't recommend it but I looked at the table of contents and it looks good. Here is the link if you're interested:
http://www.scribd.com/doc/14716766/Psychic-Self-Defense
Now, you can call it what you want to in order to get a publisher and in order to get sales but in the end, all three books are about the exact same thing. Namely, energy that you come into contact with and how to deal with it. Call it psychic attack, call it intentional, call it unintentional, call it disordered personalities, call it unseen spiritual influences, even go out on a limb and call it being cursed or generational curses, or call it all of the above—even call yourself a vampire if you fancy—but no matter what you call it, it comes down to the same thing. How to you keep your energy from being robbed and how to recognize it when it happens to you.
Not to stray too far from the subject of vampires—but you actually hit on something very valid in relation to people who like to dabble in vampirism. You eventually find some of them involved in satanic avenues who don’t believe in the motto “do what ye will but harm none”. They more or less believe in doing what ye will is the whole extent of the law. And a lot of times that entails sucking the life right out of you (if you allow it) and engaging in psychic attack (the more moral ones will only do so if you’ve really pissed them off) during your sleeping hours or just about any time that suits them.
It’s all psionics. It’s all old school occult. Give it whatever names you please. 6 of one and half dozen of the others. Anyways, those books I listed are excellent. If you’re interested in that kind of thing, give ‘em a try.