Yesterday we published the South American Indigenous Language Structures (SAILS) Online - a large database of grammatical properties of languages gathered from descriptive materials (such as reference grammars) by a team from the Languages in Contact Group (LinC) at Radboud University Nijmegen directed by Pieter Muysken.
We are particularly happy because the web application - based on the clld framework - was programmed by Harald Hammarström, thus providing evidence that our software is indeed re-usable. Should you encounter any problems using SAILS Online, feel free to open an issue at GitHub.
Like all apps built on clld, SAILS Online implements the Open Archives Initiative Protocol for Metadata Harvesting as required for archives to be indexed by OLAC. So as soon as OLAC has harvested the SAILS metadata, you will SAILS language resource when searching OLAC.