Hello Megan
We have been a homestay family for 2 yrs. Our family have had wonderful experiences and hope to continue to share our home with students for many years. I have started a group http://groups.yahoo.com/group/live_english_learn

it is brand new but i hope it will become a meeting place for sharing tips and ideas for host families, students and teachers.
Please check it out and I will try to help you with any questions that you may have from time to time.
Regards
Jenny
References :
http://groups.yahoo.com/group/live_english_learn

Tell your rules up front about the major no nos so you don’t get surprised later on. Involve them in your family events. Take them to many things around your area. Have a sense of humor and patience. Dont assume they don’t understand because they don’t speak well. Give them the freedom to explore the city in there free time or after school.
References :
I was a Rotary exchange student and lived with 4 host families over a one year period.