Which technology entrepreneur do you admire the most?

Jack Ma of Alibaba Group during the IPO at the New York Stock Exchange, September 19, 2014.
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The success of Alibaba's blockbuster initial public offering in the U.S. has catapulted founder Jack Ma into the limelight and given him the status of China's richest man.

The making of Alibaba began in 1999 when e-commerce was unheard of in China. Recalling the days when he started the venture with 17 friends in his flat in the South-eastern Chinese city of Hangzhou, Ma once said: "I called myself a blind man riding on the back of blind tigers." 15 years later, the firm is the dominant player in China's e-commerce space. Between its two main online marketplaces Taobao and TMall, Alibaba accounts for nearly 80 percent of the mainland's e-retail transactions.

Also hogging headlines last week was Larry Ellison, who announced last Thursday that he was ceding the driver's seat at Oracle - the software firm he founded and has led for the past 37 years. The two-time university drop-out is well known for creating the biggest business software company in the world and taking on competitors like IBM and Microsoft to help define the modern technological age.

Together with American entrepreneurs Mark Zuckerberg and Sean Parker who have similarly revolutionized the world with Facebook and Napster, tell us: which of these entrepreneurs do you admire the most?