When you want to say that a company is a leader in a field or has the best products, you say it's the Google of that field. If you search for "* is the Google of *", you'll find a lot of services and companies compared to Google.
* Krugle is the Google of programming code
* Baidu is the Google of China
* YouTube is the Google of Video
* Michael Arrington is the Google of Web 2.0 (?!)
* Gamespot is the Google of Videogames
* Nero is the Google of burning software
* Winamp is the Google of MP3 players
* Technorati is the Google of blog searching
* Flickr is the Google of photo sharing
* Bloglines is the Google of RSS readers
* Amazon is the Google of online book retailers
* ImageShack is the Google of free image hosting
* TailRank is the Google of memetrackers
* Skype is already the Google of VoIP
* Pandora is the Google of music
* Honda is the Google of automakers
* imdb is the Google of movies
* MySpace is the Google of social networks
* iTunes is the Google of the podcasting world
* Lonely Planet is the Google of guidebooks
{ Idea from a post written by Chris DiBona. }