Take a look on our Blog, there you'll find many integration examples with ready to use source codes and also the benefits of each one. Also the videos section provides a very nice explanation of how to use BTBuckets, better than screenshots and you can even integrate it with Google Analytics.
A simple, yet powerful use, is to create custom content and a unique experience for users from different countries. Check out what BTBuckets did for Brazilian users:
A good way to start is to identify user segments with distinct behavior in your webanalytics platform. These clusters may be defined by: referrer, type of visitor (user or returning), or geographic location.