Sentiment, from the Visualizing Literature toolset, allows users to select a text from Visualizing Literature's list of grade school curriculum exemplar creative commons texts and graph it for keywords suggestive of sentiment. All texts are searchable, and can be sorted by writer, title, publication year, grade level, availability for analysis and availablility of a direct link to the text. Please note that, as this toolset is still in beta, the selection of texts is currently limited, though over 300 texts are forthcoming.

As of 2014, this toolset is no longer available as the website has been taken down. It may still be viewed via the Internet Archive.