TEI Lite
The Text Encoding Initiative (TEI) is a text-centric community of practice in the academic field of digital humanities, operating continuously since the 1980s. The community currently runs a mailing list, meetings and conference series, and maintains an eponymous technical standard, a wiki, SourceForge repository and a toolchain.
Read more about TEI Lite: The TEI Guidelines, ODD, TEI Customizations, Projects, History