Transport option along the Amalfi coast by Ina08
If you are looking for means of transport along the Amalfi coast (Salerno, Sorrento) this website helps you to choose between ferry and bus.http://www.amalficoastweb.com/amalfi/english/bus_ferries.html
For train connections see the Circumvesuviana website which gives information about travelling from/to Napels.
http://www.vesuviana.it/web/en