There are many vital DITA resources online, including the Yahoo! dita-users group and the DITA-OT project website at dita-ot.org.

DITA-OT project website: dita-ot.org

The DITA-OT project website at dita-ot.org provides information about the latest toolkit releases, including download links, release notes, and documentation for recent DITA-OT versions.

Yahoo! dita-users group

The original DITA list-serv is a vital resource for the DITA community. People post regularly, both asking for and offering help. While the archived messages can be difficult to search, this is a treasure trove of information.

DITA-OT Users Google Group

General interest DITA-OT product forum, for questions on any aspect of the toolkit — from installation and getting started to questions about specific overrides, plug-ins, and customizations.

DITA-OT Development Slack team

Forum for discussion related to DITA-OT development and design. Topics in this forum are more technical in nature, covering upcoming design or code changes. To request an invitation and join in the discussion, visit slack.dita-ot.org.

Home page for the DITA Technical Committee

The OASIS DITA Technical Committee develops the DITA standard.OASIS

DITA-OT project archive

The DITA-OT project archive at dita-archive.xml.org provides news about earlier toolkit releases, and release notes for legacy versions.