Random panning shooting today before I hopped on the bike for a ride. The weather in getting warmer and it is well past time to get back into some warmer weather and dropping a few pounds for the really long ride days coming.....
@sarahview Sarah, the technique is called panning. You can search 365 for examples since it has been in the camera technique challenges a few times. You set your shuttle speed, exposure and ISO so that a slow shutter speed doesn't overexpose the overall capture. Depending on the distance you are from the subject and the lighting you'll usually need something around 1/15 to 1/60 of a second. For this shot I had to crank up the f-stop to f/32 at 1/40 sec and ISO 200. Use continuous focus and high speed shutter and track the subject and trigger several shots once you are tracking at a steady rate. It does take a bit of practice but bicycles, autos and motorcycles are great to work with and easy to find.
Here is a photo I posted that won the Camera Setting Challenge #7 in June of 2012: http://365project.org/mikegifford/overflow-extras/2012-06-23
And here is information from technique challenge 15: http://365project.org/discuss/themes-competitions/19789/technique-challenge-15-panning-photography
Have fun!