Englishworks, Inc.: Private language school offering English language and training classes for companies, groups, and individuals.
PATH - Plano Association of Texas Homeschoolers: A Christian-based homeschool co-op providing education and learning for its members' children.
Plano Educational Association of Christian Homeschoolers (PEACH): Information page for local support group.
Plano Homeschoolers: FAQ about homeschooling. Has sample high school transcript and course descriptions, including instructions on how to create one.