Guess-the-google is an addictive guessing game based on Google's image search. It turns the mental activity of searching into a fun, visual and engaging game where people can enjoy the challenge of being the fastest and most efficient at making that connection between search terms and their results.
Very clever vocab builder that is flash based. I only wish that it would have a built-in audio file for each word (I don't think I saw one -- could have missed it).