. I’d like the app to evolve to the point where we can choose to follow the dozen or so that are Twittering about our topic de jour. For example, one day we might want to see what people are thinking about Google Adsense, on another day the Iraq war, or social media. This would take search to a different place altogether.
Y. Duan, L. Jiang, T. Qin, M. Zhou, and H. Shum. Proceedings of the 23rd International Conference on Computational Linguistics, page 295--303. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)