The original Google logo was designed by Sergey Brin.[241] Since 1998, Google has been designing special, temporary alternate logos to place on their homepage intended to celebrate holidays, events, achievements and people. The first Google Doodle was in honor of the Burning Man Festival of 1998.[242][243] The doodle was designed by Larry Page and Sergey Brin to notify users of their absence in case the servers crashed. Subsequent Google Doodles were designed by an outside contractor, until Larry and Sergey asked then-intern Dennis Hwang to design a logo for Bastille Day in 2000. From that point onward, Doodles have been organized and created by a team of employees termed "Doodlers".[244]
Google has a tradition of creating April Fools' Day jokes. Its first on April 1, 2000, was Google MentalPlex which allegedly featured the use of mental power to search the web.[245] In 2007, Google announced a free Internet service called TiSP, or Toilet Internet Service Provider, where one obtained a connection by flushing one end of a fiber-optic cable down their toilet.[246]
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.[247] 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?"[248] Since 2019, Google runs free online courses to help engineers learn how to plan and author technical documentation better.[249]