Where do I send the protest letters to?

I am new to writing protest letters. I have found a great list of advertisors to write boycott letters to but I want to also contact the executives. Specifically, I want to write to the people that approved the production of the mini. I would love to send my thoughts to Ronald D. Moore and Bonnie Hammer as well. Any help in finding the addresses of StudiosUSA, Universal Vivendi and The Sci Fi Channel would be greatly appreciated as well. I have my letters written, I just don't know where to send them to on December 9th!