The medal for best exercise planning and tracking tool goes to RunKeeper, a nifty iPhone application that takes advantage of your iPhone's GPS to do everything from measure your speed to map your route. Following RunKeeper was another take-it-with-you solution, the Nike+ running system, which combines a sensor in your shoes with your iPod to turn your iPod into a distance-tracking, running-routine-analyzing exercise partner.
For some solutions which don't involve iAnything, make sure to check out the rest of the Hive Five and the comments from the call for contenders to see all the ways your fellow readers use websites and gadgets to help them stay in shape.