After Yahoo! went from a hobby to a start-up, we needed something to adorn our office door and company t-shirts. The jumping "Y" guy was born. Designed by David Shen, our 17th employee and the lone design guy in the office, the logo shows a person jumping for joy after finding what he needs on Yahoo!. The blue circle over which the "Y" guy is leaping represents the world. Today, the "Y" guy no longer graces our hallways and conference rooms, but if you're lucky you might see him on a business card from an old-timer. Later that year, Shen partnered with ad agency Organic Online to design the logotype. Yahoo! needed a horizontal logo because it took up less space than the more vertical jumping "Y" guy. Shen and Organic made sure the letters rose towards the right "so that, upon reading the word, you would get a sense of rising energy with the exclamation point punctuating that energy at the end," according to Shen. They eventually settled on Able font, which they modified and made purple.

ycorpblog.com