This page is a - currently relatively unstructured - collection of links and interesting information on the field variously known as sentiment analysis, opinion mining or appraisal theory.

• MPQA
• UMass Amherst Linguistics Sentiment Corpora
• LingPipe Sentiment Tutorial
• Andi Bromberg's Tutorial on Sentiment analysis in R
• Andy Bromberg's Tutorial on Sentiment analysis in Python
• Christopher Pott's Sentiment Symposium Tutorial
• SentiWordNet 3.0
• stackoverflow: Training data for sentiment analysis
• Text mining in WEKA

• SentiWordnet
• ML-SentiWordNet
• QWN-PPV