Used by beginners who are just working up to their first mile and top-notch athletes alike, Nike+ has revolutionized the sport of running. Tracking your progress digitally is only the start. The site connects you with runners all over the world. Some Nike running events now have a virtual component so that you can compete without leaving your hometown.One challenge of writing for Nike+ is keeping everything simple. The more advanced you get, the more features you discover. But the beauty of this system is its simplicity and friendliness. Anyone can use it straight away.The relationships that are forged in the Nike+ community can be incredibly strong, the bond of athletes striving towards a common goal.Nike Athletes like Lance Armstrong and Paula Radcliffe lead virtual challenges and become both inspirational heroes and personal coaches in the process.