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| web | Danielle Echeverria | San Francisco Chronicle | 2023-06-22 |
| web | Jake Rosenfeld, Michael M. Osw... | Business Insider | 2023-05-25 |
| web | Madeline Wells | San Francisco Chronicle | 2019-06-27 |
| web | Kathleen Elkins | CNBC | 2017-03-20 |
| web | Sam Zuckerman | San Francisco Chronicle | 2007-09-27 |
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| web | Tara Siegel Bernard | New York Times | 2018-08-05 |
| web | Kathleen Elkins | CNBC | 2017-03-20 |
| web | Michael Clemens | Center for Global Development | 2016-07-29 |
| web | Nicholas Confessore, Sarah Coh... | New York Times | 2015-10-10 |
| web | Michael E. Kanell And Ernie Su... | Atlanta Journal-Constitution | 2013-08-22 |
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| web | Sam Zuckerman | San Francisco Chronicle | 2007-09-27 |