LinkedIn maps is a great app which allows you to create an interactive map of all of your connections on LinkedIn. You can click on each node and view the profile of that connection as well as zoom in to see how your connections are connected to each other. You will see groups of connections in different colours. When you hover over the nodes you will find that there are commonalities, such as groups of people you have worked with. In the bottom left hand corner of the map you can give names to these colour coded groups. As you will see on my map, I have identified colleagues from Sheffield Hallam University, colleagues in Higher Education from other countries and those with social media specialisms to name just a few.
Below is a video from LinkedIn which explains the map further.