Laser Materials DB — s k i v v i e ' s laser cut goodness
Nervous System's quest for the best laser-cutting plywood – Nervous System blog
Amazon.com: Baltic Birch Plywood, 3 mm 1/8 x 12 x 24 Inch Craft Wood, Box of 12 B/BB Grade Baltic Birch Sheets, Perfect for Laser, CNC Cutting and Wood Burning, by Woodpeckers :
Choosing the Best Wood for Laser Cutting or Engraving Project
Nervous System's quest for the best laser-cutting plywood – Nervous System blog