Wow, neat idea and nice looking web page. One comment comes to mind: Think about applying to school and getting in first (that what I recommend, in fact). You will then find a place to stay even if you have to do it after you arrive in Cali for school. Sure, you might have to work out a temporary solution, such as crashing on a couch or short-term rental, but being on the ground and meeting people and seeing places will be best, IMHO. That's how I've done it and that's how thousands of students do it. I did it myself like that when I was a student and I've hosted multiple students in my home now that I am in a position to do that. Have fun and best wishes! Cheers :)