"Anthologize is a free, open-source, plugin that transforms WordPress 3.0 into a platform for publishing electronic texts. Grab posts from your WordPress blog, import feeds from external sites, or create new content directly within Anthologize. Then outline, order, and edit your work, crafting it into a single volume for export in several formats, including—in this release—PDF, ePUB, TEI."
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"WordPress 3.0 and PHP 5 required for installation. Please note that at this time Anthologize cannot be installed on blogs hosted at WordPress.com."
Source code and licensing
Support for TEI
Exports to TEI. But this TEI is actually a metadata wrapper with HTML inside it.. More specifically, it's XML with a TEI namespace as default, plus an HTML and Anthologize namespaces. The shell is TEI, and the header is nearly all TEI, but the lowest elements in the hierarchy are mostly HTML, including nearly all of the tagged content.
Documentation in English
Current version number and date of release
Anthologize 0.3-alpha (2010-08-04)