|Shutter priority, f22, 1/20s, ISO 100 (Olympus Pen E-PL1 + 14-45mm @ 14mm)|
Aside from zoom burst (or zoom blur), there is another technique you can use to imply motion in your images. It is called panning.
Zoom burst creates motion by turning your zoom lens while your camera is stationary. On the other hand, the panning technique requires the photographer to move the camera parallel to, and at the same speed as the action or subject focus. Oftentimes, slow shutter speeds are used in this technique.
Panning enables the photographer to keep the main subject, e.g. moving car or cyclist, clearly in focus while the background is a blurred motion.