POST /m8/feeds/groups/default/private/full/batch ... retrieve https://www.google.com/m8/feeds/groups/default/full/retrieveContactGroupId create Salsa group Nice people. update http://www.google.com/feeds/groups/userEmail/base/updateContactGroupId 2005-01-18T21:00:00Z 2006-01-01T00:00:00Z New Group Title New Group Content delete https://www.google.com/m8/feeds/groups/default/full/deleteContactGroupId HTTP/1.1 200 OK Content-Type: application/atom+xml; ... retrieve http://www.google.com/m8/feeds/groups/userEmail/base/retrieveContactGroupId 2008-12-10T04:44:37.324Z joggers joggers create http://www.google.com/m8/feeds/groups/userEmail/base/createContactGroupID 2008-12-10T04:44:37.324Z Salsa group Nice people. update http://www.google.com/feeds/groups/userEmail/base/updateContactGroupId 2005-01-18T21:00:00Z 2011-05-11T00:00:00Z New Group Title New Group Content delete 2011-05-11T09:30:00.000Z Deleted https://www.google.com/m8/feeds/groups/default/full/deleteContactGroupId