Okay, I've picked my topic and have about half of my research done.
The problem is, the paper needs to argue a point. I'm at a loss of what that point should be.
The Salem Witch trials is a fascinating topic which has been written about at length, with many different theories as to its underlying causes. With half your research done, it may be a bit late to be looking for a particular focus for your paper; usually it's better to know where you're going before you try to get there! :-) Here are some ideas to consider:
Some researchers believe that ergot poisoning, from rotted grain, caused hallucinations in the girls who started the accusations of witchcraft. A similar theory posits jimson weed, with its hallucinatory effects, to have been the cause. Others believe that the strict, religious upbringing in an overly confining environment cause the girls to "act out." You may find that choosing one of these theories as a basis for your argument will help you focus your paper.
I hope this helps!