counterintuitive- contrary to intuition or to common-sense expectation (but often nevertheless true)
Twitter- a social networking and micro-blogging service that enables its users to send and read other users' updates
Zillow- allows users to see the value of millions of homes across the United States, not just those up for sale and it offers several unique features including value changes of each home in a given time frame (such as 1, 5, or 10 years), aerial views of homes, and prices of homes in the area
interface- a device or program enabling a user to communicate with a computer
I used Wikipedia for most of the defined words. For the others, such as, interface and counterintuitive, I used the Dictionary Application for Mac OS… That Zillow site sounds a bit scary.