by flushing one end of a fiber-optic cable down their toilet. Google's services contain easter eggs, such as the Swedish Chef's "Bork bork bork," Pig Latin, "Hacker" or leetspeak, Elmer Fudd, Pirate, and Klingon as language selections for its search engine. When searching for the word "anagram," meaning a rearrangement of letters from one word to form other valid words, Google's suggestion feature displays "Did you mean: nag a ram?" Since 2019, Google runs free online courses to help engineers learn how to plan and author technical documentation better. Workplace culture On Fortune magazine's list of the best companies to work for, Google ranked first in 2007, 2008 and 2012, and fourth in 2009 and 2010. Google was also nominated in 2010 to be the world's most attractive employer to graduating students in the Universum Communications talent attraction index. Google's corporate philosophy includes principles such as "you can make money without doing evil," "you can be serious without a suit," and "work should be challenging and the challenge should be fun." Alphabet Inc. had 132,121 employees, of which more than 100,000 worked for Google. Google's diversity report states that 32 percent of its workforce are women and 68 percent are men, with the ethnicity of its workforce being predominantly white (51.7%) and Asian (41.9%). Within tech roles, 23.6 percent were women; and 26.7 percent of leadership roles were held by women. In addition to its 100,000+ full-time employees, Google used about 121,000 temporary workers and contractors, . Google's employees are hired based on a hierarchical system. Employees are split into six hierarchies based on experience and can range "from entry-level data center workers at level one to managers and experienced engineers at level six." As a motivation technique, Google uses a policy known as Innovation Time Off, where Google engineers are encouraged to spend 20% of their work time on projects that interest them. Some of Google's services, such as Gmail, Google News, Orkut, and AdSense originated from these independent endeavors. In a talk at Stanford University, Marissa Mayer, Google's vice-president of Search Products and User Experience until July 2012, showed that half of all new product launches in the second half of 2005 had originated from the Innovation Time Off. In 2005, articles in The New York Times and other sources began suggesting that Google had lost its anti-corporate, no evil philosophy. In an effort to maintain the company's