Hello Adster,
Request that you please re-send info on betting exchanges to the email address I PM'd you as I may have missed the first send. Please put BET EXCHANGE in subject line to help me spot it. Also, upon seeing your post on Betfair, I looked them up and tried to sign up with them but discovered that they do not allow bets to be made from within the USA. Would you have a recommendation for any other such booking service? Thanks.
Best regards,
thelema