Palo Alto-based Terabitz launched in July 2007 as a sort of Netvibes/Pageflakes for people searching for real estate.
A search on the site pulls up a basic Google map of the area and nothing else. But users can then drag in modules to add information - local foreclosures, recent sales, listed homes, schools, even fast food restaurants. Every module that is added by a user also adds the appropriate information to the map as well. It's a very convenient way to get a feel for the neighborhood.
The original idea for the company came from seventeen year old Kamran Munshi, who is now a freshman at Yale. His father, Ashfaq, ran with the idea and raised $10 million in funding. The company has 32 employees (12 in the U.S., 30 in India).
Later today the company is launching a new feature - the ability to create a map with various modules included and then embed it on another website. So any site that wants to add a Google generated map that includes, say, local businesses and restaurants (a hotel, for example) can now do so easily. The tool is free, but will be branded with Terabitz.