There are several print periodicals in the SE Idaho area who will print your events. Many of them need at least one month's advance notice. So book early and get the word out!
Idaho Monthly Events - email@example.com
The Bannock Alternative - http://thebannockalternative.com/ - firstname.lastname@example.org
The Bengal - http://www.isubengal.com/ - email@example.com
Inside Pocatello - http://www.insideidaho.info/pocatello/
Idaho State Journal - http://www.journalnet.com/
ISU Voice - http://www.isuvoice.com/
The JHub - http://www.thejhub.com/
.... more to come ....