The best way to find a job is to contact principals directly.
You have four choices for contacting principals
Frankly, I didn't have any mutual friends and I didn't have the guts to call them on the phone. In Canada, I found sending in a school district application to be useless - no one ever looked up the records. If you do go the generic application route, be sure to check the school district postings weekly - you often have to reapply or activate your file for every posting that arises or you won't be considered. For me, sending principals direct mail was by far the best method - I managed to find myself a job every year despite massive widespread layoffs and having indifferent teaching reports. Although I applied at all the local school districts and wrote custom resumes for every newspaper ad, four out of the five jobs I found were from mailouts alone.