Please begin assembling a database of opportunities. Include in your database names of schools, employers, or events. Identify locations with names of cities, states, latitude, and longitude. The kind of opportunities you choose will determine what other kind of information you want to include in your database. For example, you might want to include deadlines for applications, prospective costs or income, the name of a university's department or program, the division of a corporation, and so on.
I will show you an example with my database of scientific institutes in Germany.