"Google admits that it's very early, but this is
extremely intriguing technology and it has the potential to take
visual search to a whole new level by combining it with virtual
reality to give you results when you have no information
whatsoever.
"Multimedia Search is A Different Animal
"Multimedia search has always presented a unique challenge to
search engines. It's one thing to locate text because the text
itself is always going to provide a reasonable context to find the
item you are looking for, but pictures, video and sound tracks
generally lack textual clues beyond metadata such as a title, date,
equipment used and so forth. While this is helpful it doesn't let
you start with an item you know nothing about and get you to an
accurate search result. That's where Google Goggles is so
different."