Im currently in college and have met a lot girls on facebook, and i was thinking how should i ask to meet them without sounding too weird? or is there a way i can lead them to suggest the idea of meeting? thanks

Easily done in many ways.

I find the best thing to do is say something like "Listen, I'll be in town and free after I've done *insert something here* (eg gone to the gym, seen some friends, gone jobhunting etc etc). If you're free too, we should hang out"

I've also done it by gently telling the girl that we're going out the next day
ie. "We're going to a gig tomorrow night" or "We're gonna get coffee tomorrow/whenever you want"

Another way you could use is to possibly bring up something cool or new in your area. For example - in my town a massive new, and rather prominent art gallery has opened. I plan to use this and say something along the lines of "I've not been around The Quad yet."
This'll lead them to either "Neither have I" or "I have! It's *their reaction*". If they say the "Neither have I" you can easily lead it on to the topic of meeting by saying "Well we should go explore it together sometime we're both free. Say.. Wednesday?"
Should they say the other and it's a positive reaction, reply with something like "Oo great! You can show me around sometime. Say.. Wednesday?"
Can use that for events also. "Are you going to X Event?" 'Yeah' "Great, I'll meet you there then!"

Hope it helps
-Dro