Related link: http://www.google.com/webhp?complete=1
The latest beta offering from Google gives you word completion in the search input box. As you type, a popup menu appears with suggested words to search for.
It works for phrases, too. It seems to build the list of suggestions from actual text found on the web; it will present you with common typos to complete your words.
For example, typing “google su” will eventually get you to “google suggest”, but the first completion is not flattering to Google.
The FAQ for Google Suggest says it uses similar technology to the “Did you mean?” feature that offers substitutes for your possibly misspelled search terms.
Yet another innovation from Google. Keep ‘em coming!
Did you mean “google sucks”?