The Pennsylvania PTA has a great guide to creating a resolution, the cornerstone of effective local government. Particularly useful are the various legalese terms given to help you formulate the Whereas and Be It Resolved clauses.
Open States Project
The OpenStates project gives you access to a database with state-level bills and legislators. You can search bills by text content and you can search for contact information for a specific lawmaker. You can also find information on their previous votes. The database is incomplete, so don’t bet your life on it, but still incredibly useful for lobbying at a state level.