You can buy effective microorganisms in the U.S. from http://www.smilinggardener.com/sale/effective-microorganisms-and-scd-probiotics and in Canada from http://www.gardenerspantry.ca
Learn about activating effective microorganisms into 20 times the original amount, including some advanced activated EM tips ( I've moved to http://www.youtube.com/user/gardenersmiling ).
