National Bioscience Database Center (NBDC) and Database Center for Life Science (DBCLS) have been organizing annual BioHackathon since 2008, mainly focusing on standardization and interoperability of bioinformatics data and web services for improving integration, preservation, and utilization of databases in life sciences. Homepage: http://biohackathon.org/
FALDO is the Feature Annotation Location Description Ontology. It is a simple ontology to describe sequence feature positions and regions as found in GFF3, DDBJ, EMBL, GenBank files, UniProt, and many other bioinformatics resources.
The aim of this ontology is to describe the position of a sequence region or a feature. It does not aim to describe features or regions itself, but instead depends on resources such as the Sequence Ontology or the UniProt core ontolgy.
You can read more about it our paper describing FALDO.
The ontology can be browsed here: http://biohackathon.org/resource/faldo or at http://aber-owl.net/ontology/FALDO/#/.