Auto add Chatter Group tag to all chatter posts - Salesforce Stack Exchange
How to Tag Records in Salesforce Chatter - ForceMedic Design
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Salesforce - Tag Chatter posts to read or revisit later. Spring '12 makes it easy to find those Chatter posts you didn't have time to read or wanted to revisit later with
How to Tag Records in Salesforce Chatter - ForceMedic Design