Doodles are the fun, surprising, and sometimes spontaneous changes that are made to the Google logo to celebrate holidays, anniversaries, and the lives of famous artists, pioneers, and scientists.
Google doodle are design by team of illustrators (doodlers) and engineers, more than 1000 doodles are designed every year.
Mostly google doodlers are designed doodles on the basis of events, on last 14 august google uploaded pakistani traditional doodle on their website.
Google respect the feedback of their users, you can send your idea or brainstorming of doodle to the google team by this email address firstname.lastname@example.org
Google also conducted a competition among the student of entire world, where students design attractive and eye-catching doodles and then Google user decides the winner by giving votes to the student doodlers and the winner will be announced on the basis of getting high votes.
Winner doodler doodle will be a live on google site for 24hours and he/she also enjoy the tour of googleplex (a headquarter of google).
Find google Doodles: http://www.google.com/doodles