Wolfram Alpha is now online. It's a search engine - but not just like any other search engine. It searches or facts, so you won't get a list of websites containig your search term. Try searching for "uncle's uncle's brother's son" or "2 cups orange juice + 1 slice of cheddar cheese" (examples taken from heise) and see firsthand how different that search engine is. I think searching for "real" information in the form of facts has gotten a whole lot easier. Wow.