A free agenda is a workflow to populate an events agenda and distribute event data as open data.
An agenda in this workflow starts as a google sheet populated via a google form and then it is converted to an owl ontology. The ontology is distributed via a downloadable file, a SPARQL Endpoint and a ICalendar file (see (http://www.faqs.org/rfcs/rfc2445.html)[RDF2455], we found also a nice (http://icalendar.org/validator.html)[iCalendar files validator]).