Google Calendar Users - join
A discussion for anyone who needs help or advice on using Google calendar. Please post feature requests for the possible addition to Google Calendar at a later date. Follow me on Twitter: www.twitter.com/Get_Fit_Tips
Low activity, 2290 members, restricted

Google Base Data API - join
Welcome to the Google Base data API discussion group! This is a forum dedicated to the exchange of information and opinions related to the Google Base data API. Note: only posts from 'Google Base Guide' are approved by Google.
Low activity, 1282 members, restricted

Blogger Developer Group - join
For Blogger API-related development discussion only. If you need technical support, please use this group: http://groups.google.com/group/blogger-help
Low activity, 3976 members, restricted