Don't know who represents you in Salem? The easiest way is to call your county clerk. He or she will be able to tell you what district you are in as well as who your representatives are at the state and federal level.
https://www.oregonlegislature.gov/
Find out what is happening today. Search for a House or Senate Bill. Find your district and learn who your representatives are.
https://www.oregonlegislature.gov/citizen_engagement
Learn how ideas become bills and then become laws. Find out how you can engage with your legislators, how to speak in favor or against a bill and what to do if you want to visit the Capitol building.