For those new to paddling, the draw stroke is something to master. Basic tips and techniques for surfing a sea kayak. How to launch through the beach break, ride a wave and brace while broaching. Downwind Paddling How to paddle against high seas at your back using the stern rudder as a maneuver to avoid broaching while riding down the face of a wave. Series of linked pages include history and disadvantages.
Discussions includes feather angle, shaft length, blade area and crankshafts.
Although specifically written for Feathercraft folding kayaks, most of the information applies to all sea kayaks. From Folding Kayak Adventures. Interesting study of nautical physics involved and argument for use of skeg in lieu of rudder. In depth discussion of variations in the Greenland forward stroke as studied by Greg Stamer while watching Maligiaq Padilla, the Greenland National Kayak Champion. Includes all strokes, maneuvers and sculling.