WormBase (www.wormbase.org) is an ever-expanding repository of genetic, genomic, and biological information for C. elegans (and other closely related nematodes). The last year has seen many changes to both the database behind WormBase and to the website by which most people access the data.

The database is constantly evolving through the refinement of existing data (e.g. ongoing curation of gene models) and the inclusion of new datasets (large and small). Also, because it is a goal to make WormBase easier to use, we have made many improvements to the website, including the addition of new tools for data extraction and many advances to existing pages (particularly the new 'Gene summary' pages). These and other recent improvements will be discussed alongside an overview of some of the new data that have been added to WormBase over the last year (such as the inclusion of the C. briggsae genome assembly).

WormBase exists to serve the C. elegans and broader biomedical community, and the WormBase Consortium thanks our many data contributors and collaborators, especially those providing their large-scale datasets, and those providing feedback. Comments, questions and suggestions are always welcome and can be made by emailing wormbase-help@wormbase.org.