19 year old American student looking for flatmates in Madrid

Hello, my name is Carlie and I am looking for flatmates from September 2014- end of May/ beginning of June 2015. I studied abroad in Zaragoza last year for 9 months, a city about an hour and a half away if you take the ave, so I am pretty familiar with Spain. I love the country, the culture, the food, the people, the nightlife..everything, and I am looking for outgoing flatmates who are looking to make the most of the year in Madrid. As for location, I am flexible but my school is near Avenida del Valle, so something in that general area (northwest part of madrid) would be great. Please feel free to contact me if you are looking for a flatmate, or if you have a flat available.