If you want to do emails, then google a celebrity you want and managment, for example, 'Vernon Kay Managment' then just look for there email on the site, and see who other clients they have. I always just be straight to the point in emails. Try arlington Managment and James Grant, they both have quick replies.

Through the mail. Or emails. I have had only one success by the contact us page. Although it really depends on the celebrity, to know for sure which way is best.
But if ur doing TTM make sure u send a SASE (self adressed stamped envolope) becuase this almost always increases ur chance of getting a reply.

Hope this helps. If you have any more questions let me know.

I have emailed a few people using the "contact us" part on websites. I haven't actually received a single email reply though. What is the best method to try and get an autograph?