Yes, we notebook with all of our kids from K-12. It builds/develops so many skills ... research, note-taking, organization, analysis, etc. There's really no limit to what they can include in their notebook from simple written narrations to full essays.
My online friend Barbara McCoy has written many excellent articles and posts for this very topic. She uses our products and gives lots of examples of how she used notebooking with her high school boys.
Top 5 Reasons to Use Notebooking Pages in High School
High School Notebooking Pages (photo album)
Notebooking for High Schoolers
Notebooking – Build Good Habits In Your Homeschooler
Notebook Pages in a Charlotte Mason Homeschool
Tapestry of Grace and Notebooking: How To Choose Topics
How To Set Up a History Notebook Using a Timeline and Notebook Pages
How To Use Notebook Pages To Write An Essay Using the Institute for Excellence in Writing System
This is a great post I found from Sherry Hayes on Notebooking Homeschool High School Science