Section on Genius annotation. The full whitepaper this is from (lots of stuff on social annotation, digital editions, community reading!) is at dr.amandavisconti.com.
The Genius annotated version of Ulysses comes closest to my vision of a public conversation around Ulysses: visitors can highlight words or passages in the text and add their interpretations, questions, and comments1. Genius grew out of the "Rap Genius" site, a project allowing rap enthusiasts to annotate lyrics with interpretations and contextualizations on the same level as other types of poetry. Some of its design metaphors are more understandable knowing they arose from a music tradition rather than a print text annotation tradition.
Readers can up- or down-vote existing annotations as well as "promote" particular annotations onto the profile pages of users who follow their account. Genius grants locked-down, custom "classroom" versions of any text to a teacher and the users the teacher allows; these versions are stripped of all existing a