Social Mention

http://socialmention.com/
Ottawa, ON, Canada

In their own words

Social Mention is a social media search platform that aggregates user generated content from across the universe into a single stream of information.

It allows you to easily track what people are saying about you, your company, a new product, or any topic across the web's social media landscape in real-time. Social Mention monitors 80+ social media properties directly including: Twitter, Facebook, FriendFeed, YouTube, Digg, Google etc.

Social Mention currently provides a point-in-time social media search and analysis service, daily social media alerts, and a third-party API.