http://thechefsacademy.com The Chef's Academy is a culinary school with locations in Indiana and North Carolina. In this video Chef T. takes you through the chiffonade cut.
From Wikipedia: The Chiffonade (French pronunciation: [ʃi.fɔ.nad]) is a cooking technique in which herbs or leafy green vegetables (such as spinach and basil) are cut into long, thin strips. This is accomplished by stacking leaves, rolling them tightly, then cutting across the rolled leaves with a sharp knife, producing fine ribbons. The technique can also be applied to crepes or thin omelets to produce strips.
This technique is unsuited to small, narrow, or irregularly-shaped herb leaves such as parsley, thyme or rosemary due to there being less surface area for the knife to do a practical job.
"Chiffon" is French for "little rag" referring to the fabric-like strips that result from this technique. To chiffonade simply means to turn into rag-like strips.