For general user help, please try the Google Chrome Help Center. You can subscribe to the following groups to get project updates and discuss the Chromium project:

chromium-announce

Announcements are sent to this list when a new build is available on the developer channel, and at other important events relevant to a majority of users. This is a low-volume, moderated list.

chromium-discuss

General Chromium discussion, ideas and suggestions should go here. This is a high-volume mailing list, and in general is the right list to post to as a default if you are unsure of exactly where you should post. Topical posts include items such as ideas for new features or the improvement of existing features, questions or comments around the high level design of Chromium, and other high-level topics that are not necessarily focused on the actual engineering or implementation of code.

This group is for people who are creating extensions for Chromium or Google Chrome.