ARK the Archaeological Recording Kit is an opensource, standards compliant, web-delivered system for the creation, storage, manipulation and publication of archaeological data and media.
Commentpress is an open source theme and plugin for the WordPress blogging engine that allows readers to comment paragraph by paragraph in the margins of a text. Annotate, gloss, workshop, debate: with Commentpress you can do all of these things on a finer-grained level, turning a document into a conversation. It can be applied to a fixed document (paper/essay/book etc.) or to a running blog.
TEI Boilerplate is a lightweight solution for publishing styled TEI (Text Encoding Initiative) P5 content directly in modern browsers. With TEI Boilerplate, TEI XML files can be served directly to the web without server-side processing or translation to HTML.