Google Labs - Notebook - join
This is a discussion forum where you can exchange information with other Google Notebook users.
Low activity, 2968 members, restricted

Google-Firefox-Extensions - join
This is a discussion forum where you can exchange information and discuss Google-developed extensions for the Mozilla Firefox browser.
Low activity, 5027 members, restricted

Google Toolbar IE Help - join
Welcome to the Google Toolbar for Internet Explorer Help group. This community is intended to be a comfortable and useful meeting place for English-speaking Google Toolbar users to ask questions and share information with each other and participating Google employees ("Googlers/Google Toolbar Guides"). Anyone is welcome to sign up as a member and begin posting immediately. For more info, check out our charter at: http://groups.google.com/group/IEToolbar-Group/web/toolbar-help-charter-and-posting-tips
8918 members, restricted