Yahoo, one of the net's most iconic companies, is celebrating its 10th anniversary this week. The web portal has undergone remarkable changes since it was set up by Stanford University students David Filo and Jerry Yang in a campus trailer. The students wanted a way of keeping track of their web-based interests. The categories lists they devised soon became popular to hundreds of people and the two saw business potential in their idea. Originally dubbed Jerry's Guide to the World Wide Web, the firm adopted the moniker Yahoo because the founders liked the dictionary definition of a yahoo as a rude, unsophisticated, uncouth person.