At LinkedIn, there is a wealth of information for exploring geographic regions, job functions and companies.
1. Click on the "Contacts" tab
2. Select the "Add Connections" Option
3. Click on the "Alumni" Link

Research

The screen shot shows which the companies and cities for University of Illinois at Urbana-Champaign alumni (my alma mater) who work in Finance .

If you are researching a specific geographic area or company, you can also filter the search on these areas

Connections

As you filter the search, individual alumni would appear below this graphic depiction of your network. These alumni would be great sources for additional information about these companies, functions and cities. Ask for time offline to learn more about their experiences and careers.

As you use this tools and others, we would enjoy hearing about your experiences. You can share your comments and questions below.