Meeting girls online is pretty easy. I prefer to use Facebook to meet girls.
Something that works both online and offline is if you are unique, most guys give girls comments for their appearance. You can tell a girl you that you think she is pretty but then you should do it in a creative way.
Select the best profile pictures, it’s good if you have girls around you in them! Make women see that you are a popular guy, a leader of men and that you have a good time
Sites that you also can use are badoo.com (it’s free and has a lot of users).