Topsy, the Real-time search engine for the social web. Topsy runs on tweets, pulling the latest relevant content in Real-Time.
With Billions of tweets in it’s index, Topsy is becoming a crucial resource to measure your impact on the web, targeted marketing and segmenting or to gather real-time information and news on any topic.
Topsy has some really interesting features including Experts, which allow you to see who is the most influential on a certain topic.
Check out some other great features Topsy has to offer in this Video Review.
Video Source: RMalayeri