He's good...Dumbledore said in book 1 that the truth was dangerous, and must be handled with care, and that some questions could not be given adequate answers. I think his reasons for trusting Snape fall into this category. It is easy to see why he had to make sure only he and snape knew, because Voldemort could track Snape to the Order through Leglimency if he were to capture any of them. Therefore the fewer people that knew, the smaller the chance of Snape's double bluff being discovered.
Also, Snape shepherded all the Death Eaters off the tower very quickly after noticing the two brooms...he could have taken Harry there very easily, if I remember correctly he was unarmed, and he was definitely alone. So his letting him escape then makes no sense if he was evil...
But I guess we just have to wait till friday night/saturday!!!
Snape is just bitter therefore nasty on the outside, but he always helps harry so is a softie on the inside :-)
Snape is evil. Murder is the most evil of acts, so evil it tears the soul apart and there is no way JK will be able to talk it round to him being good now.
Alan Rickman doesnt come across as evil in the film tho (Umbridge does tho), just a bit of a bitter weirdo lol so if he does turn out to be hardcore evil i just won't be able to believe it in the film or in the book.
He will be the hero of the series. trust me
The thing is, it's just a huge disappointment if Snape turns out to be evil. It oversimplifies the entire book. Most of the main characters can be divided into "good" and "bad". Yes, they all have their minor flaws but in general, they're either light or dark. Snape was the ONE character who was a little different. He wasn't a nice or a kind person, but he was still on the side of the light. And I thought that was important because there are people like that in the world. Just because not everyone would lay down their lives for their friends like Harry does, or aren't really intelligent like Hermione, or trusting like Dumbledore, doesn't mean they're not generally moral people, who will do the right thing when push comes to shove. JKR making Snape evil changes it into - basically, Gryffindors are good, Slytherins are bad and once you've done something wrong there's no chance of redemption. If someone looks nasty they probably condone mass murder.
So that's why I think it's important that Snape's good.
^indeed. i'm 99% sure hes a goodie inside. Snape is in a good position tho coz essentially he can pick either side depending which one looks likeliest to win. Look at my countdown below - so close i can smell the binding lol
Also, theres no mention of the teachers being in love - they can't have families so its just a bit weird? Maybe Snape has the hots for prof mcgonagol for instance. now that would be scary.