From the Missouri Attorney General's webpage:

"Missouri's Sunshine Law is the embodiment of Missouri's commitment to openness in government. Chapter 610 of the Revised Statutes of Missouri is the foundation of what has become known as Missouri's Sunshine Law.  
This page is a resource to help Missourians understand the Missouri Sunshine Law and its implications for public and quasi-public governmental bodies, members of those bodies, those that conduct business with a public governmental body, and private citizens."- Missouri Attorney General

Related Links

•  Complete Statute Text
•  Court Decisions and AG Opinions
•  View Sunshine Law Book
•  Sample Language Forms
•  Sunshine Law Complaint Form
•  Sunshine Law FAQs
•  Top 10 Things to Know

Links from Missouri Attorney General