Cardboard Boomerang
   Explains how to design and make a cardboard boomerang, with pictures and videos.
   http://www.science.edu.sg/ssc/detailed.jsp?artid=3794&type=4&root=205&parent=205&cat=237

Finger Boomerangs
   Plans for making and flying small boomerangs made from file card paper.
   http://www.grc.nasa.gov/WWW/K-12/TRC/Aeronautics/FINGER_BOOMERANGS.html

Four Wing Boomerang
   Plans for building and flying a four-wing boomerang from a manilla file folder.
   http://www.reachoutmichigan.org/funexperiments/agesubject/lessons/other/Four_Wing_Boomerang.html

How to Make Boomerangs That Come Back
   Basic description for construction of various boomerangs.
   http://www.btinternet.com/~fulton/boomerng.htm

MrDunston Boomerangs
   Crafting and throwing instructions, plans, photos and links.
   http://www.mrdunston.com/boomerang

Pat's Boom Bag
   Devoted to the construction of boomerangs; includes instructions for multiple lap joint sticks and general tips.
   http://www.tyler.net/psteigman/

Whishhbone Boomerangs
   Instructions for making your own. Includes materials, shapes, pattern, airfoils, carving, and tuning discussions.
   http://whishhbone.freeyellow.com/construction.html