As far as Twitter analytics go, SocialBro is one of the more useful applications currently on the market. Now, though, the Spanish startup is taking a step towards offering data about Tweets themselves, rather than just people. It presents a graph that shows information about how your tweets have performed over time, and you can see the relative popularity of each Tweet in terms o Favorites, retweets, replies and more. You can adjust the data for date range, tweets and replies, and many other parameters. Because SocialBro is geared towards business-oriented Twitter users, the introduction of analytics for specific tweets makes it more attractive to the broad-based, social media marketing sphere.