Last year Google Analytics released a few new features, among them the Motion Charts. The feature is based on software developed by Gapminder, acquired by Google in 2007.
According to the Google Analytics blog, “Motion Charts provide a multi-dimensional, over-time analysis of the data in your report.”
This feature provides a powerful way to visualize data in five dimensions: x-axis, y-axis, size of bubble, color of bubble, and time. In fact, if you choose metrics that are combinations of more than one metric, such as conversion rates (number of conversions divided by number of visits) bounce rate (number of bounces divided by number of visits), and Pages/Visit (number of pages divided by number of visits), you can even increase the number of dimensions to eight.