A few helpful websites focusing on assessment are:
County Office.org: This website helps you find local government offices in your state, county, and city. If you’re trying to reach government offices anywhere in the Unites States, County Office can provide you with the most accurate, reliable, and up-to-date information available. Their database includes all types of government offices, including administrative, legal, health, tax, finance, commerce, education, property, social services, public works, law enforcement, emergency services, and judicial offices.
National Center on Education Outcomes: The National Center on Educational Outcomes (NCEO) was established in 1990 to provide national leadership in designing and building educational assessments and accountability systems that appropriately monitor educational results for all students, including students with disabilities and English Language Learners (ELLs).
Texas Education Agency Student Assessment Division: The Student Assessment Division manages and oversees the development, administration, scoring, and analysis of the Texas assessment program.
Common Core State Standards Initiative: This website includes a FAQ document that answers some of the frequently asked questions about the Common Core State Standards, from how they were developed to what they mean for states and local communities.