That depends. Are we talking general friends? Best friends we've known for years? Online friends?
General friends: I have about 6. I feel somewhat comfortable around them, and they're nice to hang with.
Best friends: 2. I've known these two for years, and I feel comfortable talking to them about anything and everything.
Online friends: Hm... 5 maybe? Maybe more?
^ Amazing what happens in almost a year. A lot changes once you go to college.
I have about 3 really good friends now. One who I see at least once a week, sometimes more, another whom I talk to occasionally, but only see once a month or less, and the other I used to hang out with quite a bit in college, but since he's transferring to university next semester we most likely won't hang out much at all. I also try to keep in touch with another girl, who goes to college out of state, but our friendship's been waning. Not sure how long that's gonna last. :/
I've been talking to an acquaintance quite a bit lately. I've actually known him a while, since his mom is friends with mine, and we used to talk in high school a bit. He'll be going to my college this fall. I borrow books from him once in a while, because he reads pretty much everything I do/will. That way, I don't have to buy the book if I'm unsure I'll like it or not. :
: Still not sure if we'll be really good friends or not though. He has an occasional tendency to say stupid things and piss me off and not apologize.
Online friends is about the same still though.