production of the AIRPod, an innovative car powered by compressed air, with the first factory being built in Bolotana. Craft industries include rugs, jewelry, textile, lacework, basket making and coral. Tertiary The Sardinian economy is today focused on the overdeveloped tertiary sector (67.8% of employment), with commerce, services, information technology, public administration and especially on tourism (mainly seaside tourism), which represents the main industry of the island with 2,721 active companies and 189,239 rooms. In 2008 there were 2,363,496 arrivals (up 1.4% on 2007). In the same year, the airports of the island registered 11,896,674 passengers (up 1.24% on 2007). Due to its isolated and insular location, Sardinia focused part of its economy on the development of digital technologies since the dawn of internet era: the first Italian website, one of the first webmail system and one of the first and largest internet providers (Video On Line) were realised by the CRS4, the first European online newspaper was developed by L'Unione Sarda and also the first Italian UMTS company was founded on the island. Today Sardinia is the second Italian region, after Lombardy, for investments in startups (owning the 20% of the Italian venture capital). Communications On the island are headquartered some telecommunication companies and internet service providers, such as Tiscali and the Mediterranean Skylogic Teleport, a ground station controlled by satellite provider Eutelsat. Sardinia is the Italian region with the highest e-intensity index after the Aosta Valley (index measuring the relative maturity of Internet economies on the basis of three factors: enablement, engagement, and expenditure) and the region with the highest internet performances, such as fastest broadband connection in Italy. Sardinia is also the Italian region with the highest percentage (41%) of 4G LTE users. The Chinese multinational telecommunications equipment and systems companies ZTE and Huawei have development centers and innovation labs in Sardinia. Sardinia has become Europe's first region to fully adopt the new Digital Terrestrial Television broadcasting standard. From 1 November 2008 TV channels are broadcast only in digital. Transport Airports Sardinia has three international airports (Alghero-Fertilia/Riviera del Corallo Airport, Olbia-Costa Smeralda Airport and Cagliari-Elmas Airport) connected with the principal Italian cities and many European destinations, mainly in the United Kingdom, France, Spain and Germany, and two regional airports (Oristano-Fenosu Airport and Tortolì-Arbatax Airport). Internal air connections between Sardinian airports are limited to a daily Cagliari-Olbia flight. Sardinian citizens benefit from special sales on plane tickets, and