Google – Introducing the Knowledge Graph
The next step in becoming more than a search engine.
When you search, you’re not just looking for a webpage. You’re looking to get answers, understand concepts and explore.
The next frontier in search is to understand real-world things and the relationships among them. So we’re building a Knowledge Graph: a huge collection of the people, places and things in the world and how they’re connected to one another.
This is how we’ll be able to tell if your search for “mercury” refers to the planet or the chemical element–and also how we can get you smarter answers to jump start your discovery.
More info can be found at http://www.google.com/insidesearch/features/search/knowledge.html