Whenever I need help I go to the following sources before asking Pearson PowerSchool Support.
PowerSource – Pearson’s PowerSchool Official Resource
PSUG Yahoo Group – Thousands of PowerSchool users congregate here to ask questions, get best practices, case studies,
Power Data Solutions – Hundreds of PowerSchool customizations and advanced users gather here and share information.
Oracle PLSQL Glossary – For SQL queries for PowerSchool.
PowerSchool University – The Official Event Hosted by Pearson. Every heavy PowerSchool user should go to this once.
PSUG-MI – The largest user group in the United States. After you have a strong grasp of how PowerSchool works, this is the go to be at.
SQL Developer by Oracle – GUI interface for SQL Statements