This is easy. I do something similar all the time. Get on their mailing lists and respond to the auto-responders with the question. You will be surprised to find that many times you will get a reply.
Don't stop taking massive action.
Best of Luck,
Michael T. Irvin
michaelirvin.net
My books are available exclusively through Amazon Books. Check out my book "Copywriting Blackbook of Secrets"
Copywriting, Startups, Internet Entrepreneur, Online Marketing, Making Money