Tools: Marking Gauges

A notable and well-regarded design is the Tite-Mark: http://www.glen-drake.com/Tite-Mark.html

Popular Woodworking: Make an 18th Century Marking Gauge

English Style: The English Woodworker: How to use/A Good Gauge

http://www.popularwoodworking.com/wp-content/uploads/2010/10/0612_Marking_Gauge.pdf

Lengthy discussion, which includes an interesting beam design: http://www.sawmillcreek.org/showthread.php?243552-Marking-Gauge-Jones