Whether you are new to homeschooling or a veteran, you will find helpful information at the following websites.

washhomeschool.org
The Washington Homeschool Organization (WHO) is a statewide, non-profit membership organization. Its mission is to serve the diverse interests of home-based education in Washington State. WHO is nonpartisan, nonsectarian, and non discriminating in its views of homeschooling and participation in its activities.

joyfullyrejoycing.com
From the website: This site is about unschooling. And it's about parenting more peacefully. But overall it's about living more joyful family lives. If I had to summarize it the message would be "Put the relationship first and then figure out how to fit everything else around that."

www.k12.wa.us/PrivateEd/HomeBasedEd/default.aspx
Website of the Washington State Office of Superintendent of Public Instruction (OSPI). Here you will find the complete text of our state's laws regarding Home-Based Instruction, commonly known as homeschooling.