AltaVista - Altavista Prisma
Interactive Search Has Arrived!
AltaVista Prisma is the first in a series of exciting new developments at AltaVista that allow users to engage in a highly effective, interactive and engaging search experience. Meaning prism in numerous languages, AltaVista Prisma takes in a search term and provides a broad spectrum of related terms and concepts, helping users to quickly access the most relevant results and explore additional information about their topics of interest.
http://www.altavista.com/prisma