Google Logo By Kids

In 1998 Sergey Brin created a computerised version of the Google letters using the free graphics program GIMP. The exclamation mark was added, mimicking the Yahoo! logo. "There were a lot of different color iterations", says Ruth Kedar, the graphic designer who developed the now-famous logo. "We ended up with the primary colors, but instead of having the pattern go in order, we put a secondary color on the L, which brought back the idea that Google doesn't follow the rules."
In 2010, the Google logo received its first major and permanent overhaul since 1999. The new logo was first tested in November 2009, and was officially launched on May 6, 2010. It utilises an identical typeface and colors to the previous logo, but features a much more subtle shadow and uses a different shading style.
The first Google Doodle was in honor of the Burning Man Festival of 1998. 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. Hwang has been designing the Google Doodles ever since. Clicking on a Google Doodle links to a string of Google search results about the topic, which can drive a lot of traffic to unsuspecting sites.