Business/technology: Iranian-Americans are among the most educated and successful communities in the U.S., according to a report by the Iranian Studies group at MIT. Iranian-Americans have founded, or hold senior leadership positions at, many major US companies, including Fortune 500 companies such as GE, Intel, Citigroup, Verizon, Motorola, Google, and AT&T. Pierre Omidyar, founder/CEO of eBay is of Iranian origin, as is the founder of Bratz, Isaac Larian. Hamid Biglari is Vice-Chairman of Citicorp. Bob Miner was the co-founder of Oracle Corporation and the producer of Oracle's relational database management system. In 2006, Anousheh Ansari, co-founder of the Ansari X Prize, became the first female tourist in space. Ansari is also the co-founder and former CEO of Prodea Systems, Inc., and Telecom Technologies, Inc. Other well known Iranian-American entrepreneurs include designer Bijan Pakzad, entrepreneur Sam Nazarian, business executive Hamid Akhavan, former CEO of Unify GmbH & Co. KG (formerly Siemens Enterprise Communications), Omid Kordestani of Twitter and former Senior Vice President of Google, CEO of YouTube Salar Kamangar, Sina Tamaddon of Apple Inc., and Shahram Dabiri Lead Producer for the massively multiplayer online role-playing game (MMORPG) "World of Warcraft" from 1999 to 2007. Dara Khosrowshahi became CEO of Expedia in August 2005 and then in August 2017, Khosrowshahi became the CEO of Uber, succeeding founder Travis Kalanick.