Ever wonder what font they used for their logo? Here are a few fonts used by major companies.

adidas
Font name: ITC Avant Garde Gothic Medium
Author: Linotype

Yahoo!
Font name: Yahoo!
Author: Daniel Gauthier (GautFonts)

IBM
Font name: Men In Blue
Author: Digital Empires Inc.

Budweiser
Font name: Brewmaster Modern
Author:  Michael Hagemann (FontMesa)