Send Sister Barber A Letter :
Thailand Bangkok Mission
1645/6 New Phetchburi Road
Every Sunday around midnight, she sends a general letter to the family.
You write the letter on the site, then they will send the letter for you. I've never used it before so i can only assume that's what happens, But I've heard good things about it.
Costs 1.10 to send a letter to the Thailand Bankock mission