There are several ways to get to Bologna:

By Air
Marconi Bologna Airport official site. You can flip through flight timetables, view real time flights and book on line.
www.bologna-airport.it

By Rail
Treniitalia, National Railway Company. On line ticket office; timetable of trains leaving from and arriving to Bologna.
www.ferroviedellostato.it

By coach
The Bologna Coach Station; just opened the brand new Tourist Coach Facilities (the On-Line Booking service, the Music Coach, fares, timetables).
www.autostazionebo.it (Italian version)

By Road
Autostrade Company official site. You can purchase Queue Drive-Throughers on line, check traffic forecast, view routes and tolls, plan your journey by means of the interactive map.
www.autostrade.it (Italian version)