Automatic quotes or references are generated based on a user's interaction with one or more pieces of content. A passage for quotation may be determined based at least in part on usage data including information about interaction with one or more pieces of content. A user may begin to type a quotation and a corresponding passage is inserted. The user may vary the scope of the passage, such as adding sentences or paragraphs. User annotation of the passage while the content is presented may also generate an automatically inserted quotation. A citation descriptive of the quoted passage may also be inserted. The automatically inserted quotation may be configured with a link or script, allowing additional functions or access to source content.