Of goods: The people of Iceland use boats, trucks, and planes to transport goods throughout their country and also to export goods to the rest of the world. Fishing is widely popular so it's not surprising that seafood is one of the primary exports. Iceland makes a large portion of its money by exporting goods to many countries, including the United States.
Of ideas: Telephones are very important to the people in Iceland - it is the main way people communicate. The Icelandic people also enjoy many radio stations (there are approximately 70 different stations throughout the country) and they use the internet as well. All of these things help ideas travel throughout Iceland.
Of people: Because there are no public train stations in Iceland, people travel by cars. The country also has 86 airways. The price to fuel cars, trucks, and planes is very high, which impacts their economy.