Meet People
Okay well I only read the first 5 or 6 replies, so maybe somebody has already said this, but the main key to getting girls in college in my opinion is that you must MEET LOTS OF NEW FRIENDS
Do whatever you have to do to accomplish this. If you want to try to maintain your dignity or something and not join a frat or suck up to people for the first semester, then fine, try to be just a cool guy for one semester. But if by the middle of your freshman year you don't have the opportunity to go out multiple times every weekend, and your goal is to meet girls, you absolutely must do something drastic.
That might mean joining a frat, switching dorms, completely humbling yourself and just flat out asking cool looking people if you can hang with them because you have no friends, etc. Whatever you do, you have to make some friends. Hopefully you're at a huge University like me - Don't worry about appearances when you're meeting new people at college. You can't develop a reputation for being a loser or something, there are just too many people.
The key to meeting/dating/sleeping with lots of girls is that you actually have to meet them. It's really just a numbers game. Sitting in your dorm or apartment on your computer isn't going to result in too many opportunities. There are thousands of thousands of girls out there, the more you can meet the better. If your goal is to branch out and meet women, you don't want to be sitting around with the same people.
So make lots of friends.
The past few weeks I've been dating this one girl who is is a 9 on looks and a 10 on personality. A year ago in high-school (or even last semster) I would have been completely infatuated, AFC, even though I know that I shouldn't be. Tonight before we went out, she told me that she only wants to hang out and isn't up for a relationship. A year ago I would have been devastated, but tonight I'm happy - I now have a new amazing friend to hang out with and meet people through (we still had a great time tonight), and when I go out tomorrow night I can hook up with a cute girl I went out with last night without feeling like I'm settling for a sure-thing 8.5 over a finicky 9.5.
I'm really having a good time right now (even though the most amazing girl just shut me down) because I've got tons of options. Behind this next one are three more possible girls HB>7 who I have good chances with. And having lots of options makes those other girls want you more - you'll seem confident and interesting.
One thing you want to think about to fascilitate this is that you should try to make literally every person you meet your friend. I'm talking ugly girls, random guys, everybody. Get a person's name, smile at them, and genuinly say something like "I'll see you around, we'll defenitely hang out sometime." Even if you've only just been introduced, and have no reason to say that, you should. This is simply so that you can use them to network later on. LEARN TO REMEMBER NAMES the first time they are told to you. It's not funny, so much as it is pathetic and average, to talk about how you "never remember people's names." No matter how little you know someone, calling out their name when you see them in an excited way is going to get you a favorable response. People love to think that others know them. Find a strategy for remembering names. Saying it to yourself or back to the person is just a gimmick, that never really works. Try associating the person with another person of the same name who you know well.
If you're looking for ways to stand out, the best one by far in college is to BE POSITIVE. You're going to get to college and realize that a lot of what college students do is complain. They complain about class, the weather, how there's nothing to do, their roommates, and basically everything else. If you simply say good things about everything, you'll stand out. Smile, don't sulk.
I guess that's all i've got right now. Good luck, I'm sure you'll have a blast as long as you're thinking about this stuff. You may go through some tough times getting to where you want to be, but getting to where you're going isn't *difficult* as long as you're trying a little bit. It's the people who just get to college and expect girls to automatically flock around them who have to worry.