Offers the official TYPO3 documentation, tutorials, the extension repository with downloads, organisation of the developer teams and a community with mailing list and a blog.

The official website organized by the TYPO3 Association offers general information on the CMS and a list of reference projects.

Website of the non-profit organisation organising the development of the content management system. Background information, how to become a member, and activity reports.

Great parts of the main TYPO3 documentation can be found in this Wiki ranging from helpful knowledge for beginners to advanced knowledge for extension programmers.

The Weblog from contains articles related to TYPO3 and its community.

Blog presenting news on TYPO3 and related web topics, several tutorials and a copy of the official API.

English speaking support forum for TYPO3 programmers. Offers also downloads of helpful resources like documentation, installers and templates.

Blog of Dmitry Dulepov, author of the book "TYPO3 Extension Programming". News on the community and tipps and tricks about coding.

Official API of the TYPO3 source code listing files, classes and packages.

Blog with news and comments on the content-management-system and other web related issues.