UPDATE: miRBase version 19 is the current version
The miRBase database has moved to a new location at http://www.mirbase.org/, hosted in the Faculty of Life Sciences, University of Manchester. miRBase in Manchester is now funded by the BBSRC. The miRBase Targets site and pipeline have devolved into the Enright research group at EBI under the name MicroCosm (http://www.ebi.ac.uk/enright-srv/microcosm/htdocs/targets/). All pre-existing Sanger site URLs should forward to their new locations. Please update your links, and note the new contact email address (email@example.com). miRBase 14 is now available at http://www.mirbase.org/. Please see the README for the new release at ftp://mirbase.org/pub/mirbase/CURRENT/README. With release 14, the miRBase sequence database has broken through the 10000 entries barrier!