Why is yahoo.com called Yahoo!?
We'll let the people at Yahoo!
explain where the name came from.
The Web site started out as "Jerry and David's Guide to the
World Wide Web" but eventually received a new moniker with the help
of a dictionary. The name Yahoo! is an acronym for "Yet Another
Hierarchical Officious Oracle," but Filo and Yang insist they
selected the name because they liked the general definition of a
yahoo: "rude, unsophisticated, uncouth." Yahoo! itself first resided
on Yang's student workstation, "Akebono," while the software was
lodged on Filo's computer, "Konishiki" - both named after legendary