Secret to successful / effective internal communication by HR? It might be a very simple question, but I am not looking for a theory here - rather best practice by someone who's &quote;been there, done that&quote;. So here is the scenar

Secret to successful / effective internal communication by HR? It might be a very simple question, but I am not looking for a theory here - rather best practice by someone who's &quote;been there, done that&quote;. So here is the scenario: ~100 employees organization, many various issues to be communicated to employees from the HR dept on continuous basis (just to name a few examples - new policies, org / business structure change, internal transfers, etc, etc). Can you list down the key questions I could use as a checklist to determine the best mode of communication? (im not talking here about things like newsletter - i think that is too ancient, i am looking at probably manager involvement, and things like that, in addition to the standard email and company meetings).