Predicting Elections with Twitter: What 140 Characters Reveal about Political Sentiment. - Andranik Tumasjan; Timm Oliver Sprenger; Philipp G. Sandner; Isabell M. Welpe (ICWSM, 2010)

Divided They Tweet: The Network Structure of Political Microbloggers and Discussion Topics. - Albert Feller; Matthias Kuhnert; Timm Oliver Sprenger; Isabell M. Welpe (ICWSM, 2011)

TweetTrader.net: Leveraging Crowd Wisdom in a Stock Microblogging Forum. - Timm Oliver Sprenger (ICWSM, 2011)

Tweets and peers: defining industry groups and strategic peers based on investor perceptions of stocks on Twitter. - Timm Oliver Sprenger; Isabell M. Welpe (Algorithmic Finance, 2011)