Displaying pre-defined data in the most beautiful and readable way is great but amCharts lets you visualize live constantly updating data just as well.
Key implementation details
In this example we emulate new data being added every second. We just add a new data item to our
series.data and remove the oldest one. For maximum effect we animate the new data item by moving both its X and Y values from the previous items location to the actual location of the newly added data.